diff --git a/rsconcept/backend/apps/oss/migrations/0006_alter_operation_oss.py b/rsconcept/backend/apps/oss/migrations/0006_alter_operation_oss.py
new file mode 100644
index 00000000..ded84c01
--- /dev/null
+++ b/rsconcept/backend/apps/oss/migrations/0006_alter_operation_oss.py
@@ -0,0 +1,20 @@
+# Generated by Django 5.0.7 on 2024-08-09 13:56
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('library', '0003_alter_librarytemplate_lib_source'),
+        ('oss', '0005_inheritance_operation'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='operation',
+            name='oss',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='operations', to='library.libraryitem', verbose_name='Схема синтеза'),
+        ),
+    ]
diff --git a/rsconcept/backend/apps/oss/models/ChangeManager.py b/rsconcept/backend/apps/oss/models/ChangeManager.py
new file mode 100644
index 00000000..82f0df80
--- /dev/null
+++ b/rsconcept/backend/apps/oss/models/ChangeManager.py
@@ -0,0 +1,194 @@
+''' Models: Change propagation manager. '''
+from typing import Optional, cast
+
+from apps.library.models import LibraryItem
+from apps.rsform.graph import Graph
+from apps.rsform.models import INSERT_LAST, Constituenta, CstType, RSForm
+
+from .Inheritance import Inheritance
+from .Operation import Operation
+from .OperationSchema import OperationSchema
+from .Substitution import Substitution
+
+AliasMapping = dict[str, Constituenta]
+
+# TODO: add more variety tests for cascade resolutions model
+
+
+class ChangeManager:
+    ''' Change propagation API. '''
+    class Cache:
+        ''' Cache for RSForm constituents. '''
+
+        def __init__(self, oss: OperationSchema):
+            self._oss = oss
+            self._schemas: list[RSForm] = []
+            self._schema_by_id: dict[int, RSForm] = {}
+
+            self.operations = list(oss.operations().only('result_id'))
+            self.operation_by_id = {operation.pk: operation for operation in self.operations}
+            self.graph = Graph[int]()
+            for operation in self.operations:
+                self.graph.add_node(operation.pk)
+            for argument in self._oss.arguments().only('operation_id', 'argument_id'):
+                self.graph.add_edge(argument.argument_id, argument.operation_id)
+
+            self.is_loaded = False
+            self.substitutions: list[Substitution] = []
+            self.inheritance: dict[int, list[tuple[int, int]]] = {}
+
+        def insert(self, schema: RSForm) -> None:
+            ''' Insert new schema. '''
+            if not self._schema_by_id.get(schema.model.pk):
+                self._insert_new(schema)
+
+        def get_schema(self, operation: Operation) -> Optional[RSForm]:
+            ''' Get schema by Operation. '''
+            if operation.result_id is None:
+                return None
+            if operation.result_id in self._schema_by_id:
+                return self._schema_by_id[operation.result_id]
+            else:
+                schema = RSForm.from_id(operation.result_id)
+                schema.cache.ensure_loaded()
+                self._insert_new(schema)
+                return schema
+
+        def get_operation(self, schema: RSForm) -> Optional[Operation]:
+            ''' Get operation by schema. '''
+            for operation in self.operations:
+                if operation.result_id == schema.model.pk:
+                    return operation
+            return None
+
+        def ensure_loaded(self) -> None:
+            ''' Ensure propagation of changes. '''
+            if self.is_loaded:
+                return
+            self.is_loaded = True
+            self.substitutions = list(self._oss.substitutions().only('operation_id', 'original_id', 'substitution_id'))
+            for operation in self.operations:
+                self.inheritance[operation.pk] = []
+            for item in self._oss.inheritance().only('operation_id', 'parent_id', 'child_id'):
+                self.inheritance[item.operation_id].append((item.parent_id, item.child_id))
+
+        def get_successor_for(self, parent_cst: int, operation: int,
+                              ignore_substitution: bool = False) -> Optional[int]:
+            ''' Get child for parent inside target RSFrom. '''
+            if not ignore_substitution:
+                for sub in self.substitutions:
+                    if sub.operation_id == operation and sub.original_id == parent_cst:
+                        return sub.substitution_id
+            for item in self.inheritance[operation]:
+                if item[0] == parent_cst:
+                    return item[1]
+            return None
+
+        def insert_inheritance(self, inheritance: Inheritance) -> None:
+            ''' Insert new inheritance. '''
+            self.inheritance[inheritance.operation_id].append((inheritance.parent_id, inheritance.child_id))
+
+        def _insert_new(self, schema: RSForm) -> None:
+            self._schemas.append(schema)
+            self._schema_by_id[schema.model.pk] = schema
+
+
+    def __init__(self, model: LibraryItem):
+        self.oss = OperationSchema(model)
+        self.cache = ChangeManager.Cache(self.oss)
+
+
+    def on_create_cst(self, new_cst: Constituenta, source: RSForm) -> None:
+        ''' Trigger cascade resolutions when new constituent is created. '''
+        self.cache.insert(source)
+        depend_aliases = new_cst.extract_references()
+        alias_mapping: AliasMapping = {}
+        for alias in depend_aliases:
+            cst = source.cache.by_alias.get(alias)
+            if cst is not None:
+                alias_mapping[alias] = cst
+        operation = self.cache.get_operation(source)
+        if operation is None:
+            return
+        self._create_cst_cascade(new_cst, operation, alias_mapping)
+
+    def on_change_cst_type(self, target: Constituenta, source: RSForm) -> None:
+        ''' Trigger cascade resolutions when new constituent type is changed. '''
+        self.cache.insert(source)
+        operation = self.cache.get_operation(source)
+        if operation is None:
+            return
+        self._change_cst_type_cascade(target.pk, target.cst_type, operation)
+
+    def _change_cst_type_cascade(self, cst_id: int, ctype: CstType, operation: Operation) -> None:
+        children = self.cache.graph.outputs[operation.pk]
+        if len(children) == 0:
+            return
+        self.cache.ensure_loaded()
+        for child_id in children:
+            child_operation = self.cache.operation_by_id[child_id]
+            successor_id = self.cache.get_successor_for(cst_id, child_id, ignore_substitution=True)
+            if successor_id is None:
+                continue
+            child_schema = self.cache.get_schema(child_operation)
+            if child_schema is not None and child_schema.change_cst_type(successor_id, ctype):
+                self._change_cst_type_cascade(successor_id, ctype, child_operation)
+
+
+    def _create_cst_cascade(self, prototype: Constituenta, source: Operation, mapping: AliasMapping) -> None:
+        children = self.cache.graph.outputs[source.pk]
+        if len(children) == 0:
+            return
+        source_schema = self.cache.get_schema(source)
+        assert source_schema is not None
+        for child_id in children:
+            child_operation = self.cache.operation_by_id[child_id]
+            child_schema = self.cache.get_schema(child_operation)
+            if child_schema is None:
+                continue
+
+            self.cache.ensure_loaded()
+            new_mapping = self._transform_mapping(mapping, child_operation, child_schema)
+            alias_mapping = {alias: cst.alias for alias, cst in new_mapping.items()}
+            insert_where = self._determine_insert_position(prototype, child_operation, source_schema, child_schema)
+            new_cst = child_schema.insert_copy([prototype], insert_where, alias_mapping)[0]
+            new_inheritance = Inheritance.objects.create(
+                operation=child_operation,
+                child=new_cst,
+                parent=prototype
+            )
+            self.cache.insert_inheritance(new_inheritance)
+            new_mapping = {alias_mapping[alias]: cst for alias, cst in new_mapping.items()}
+            self._create_cst_cascade(new_cst, child_operation, new_mapping)
+
+
+    def _transform_mapping(self, mapping: AliasMapping, operation: Operation, schema: RSForm) -> AliasMapping:
+        if len(mapping) == 0:
+            return mapping
+        result: AliasMapping = {}
+        for alias, cst in mapping.items():
+            successor_id = self.cache.get_successor_for(cst.pk, operation.pk)
+            if successor_id is None:
+                continue
+            successor = schema.cache.by_id.get(successor_id)
+            if successor is None:
+                continue
+            result[alias] = successor
+        return result
+
+    def _determine_insert_position(
+        self, prototype: Constituenta,
+        operation: Operation,
+        source: RSForm,
+        destination: RSForm
+    ) -> int:
+        ''' Determine insert_after for new constituenta. '''
+        if prototype.order == 1:
+            return 1
+        prev_cst = source.cache.constituents[prototype.order - 2]
+        inherited_prev_id = self.cache.get_successor_for(
+            source.cache.constituents[prototype.order - 2].pk, operation.pk)
+        if inherited_prev_id is None:
+            return INSERT_LAST
+        prev_cst = destination.cache.by_id[inherited_prev_id]
+        return cast(int, prev_cst.order) + 1
diff --git a/rsconcept/backend/apps/oss/models/Operation.py b/rsconcept/backend/apps/oss/models/Operation.py
index 9eb95531..021f50ff 100644
--- a/rsconcept/backend/apps/oss/models/Operation.py
+++ b/rsconcept/backend/apps/oss/models/Operation.py
@@ -27,7 +27,7 @@ class Operation(Model):
         verbose_name='Схема синтеза',
         to='library.LibraryItem',
         on_delete=CASCADE,
-        related_name='items'
+        related_name='operations'
     )
     operation_type: CharField = CharField(
         verbose_name='Тип',
diff --git a/rsconcept/backend/apps/oss/models/OperationSchema.py b/rsconcept/backend/apps/oss/models/OperationSchema.py
index 1fb4943f..b9ddea84 100644
--- a/rsconcept/backend/apps/oss/models/OperationSchema.py
+++ b/rsconcept/backend/apps/oss/models/OperationSchema.py
@@ -50,6 +50,10 @@ class OperationSchema:
         ''' Operation substitutions. '''
         return Substitution.objects.filter(operation__oss=self.model)
 
+    def inheritance(self) -> QuerySet[Inheritance]:
+        ''' Operation inheritances. '''
+        return Inheritance.objects.filter(operation__oss=self.model)
+
     def owned_schemas(self) -> QuerySet[LibraryItem]:
         ''' Get QuerySet containing all result schemas owned by current OSS. '''
         return LibraryItem.objects.filter(
diff --git a/rsconcept/backend/apps/oss/models/__init__.py b/rsconcept/backend/apps/oss/models/__init__.py
index 562bc9da..fa3be516 100644
--- a/rsconcept/backend/apps/oss/models/__init__.py
+++ b/rsconcept/backend/apps/oss/models/__init__.py
@@ -1,6 +1,7 @@
 ''' Django: Models. '''
 
 from .Argument import Argument
+from .ChangeManager import ChangeManager
 from .Inheritance import Inheritance
 from .Operation import Operation, OperationType
 from .OperationSchema import OperationSchema
diff --git a/rsconcept/backend/apps/oss/tests/s_models/t_Substitution.py b/rsconcept/backend/apps/oss/tests/s_models/t_Substitution.py
index 1c5d0527..c63c5bf5 100644
--- a/rsconcept/backend/apps/oss/tests/s_models/t_Substitution.py
+++ b/rsconcept/backend/apps/oss/tests/s_models/t_Substitution.py
@@ -14,9 +14,9 @@ class TestSynthesisSubstitution(TestCase):
         self.oss = OperationSchema.create(alias='T1')
 
         self.ks1 = RSForm.create(alias='KS1', title='Test1')
-        self.ks1x1 = self.ks1.insert_new('X1', term_resolved='X1_1')
+        self.ks1X1 = self.ks1.insert_new('X1', term_resolved='X1_1')
         self.ks2 = RSForm.create(alias='KS2', title='Test2')
-        self.ks2x1 = self.ks2.insert_new('X2', term_resolved='X1_2')
+        self.ks2X1 = self.ks2.insert_new('X2', term_resolved='X1_2')
 
         self.operation1 = Operation.objects.create(
             oss=self.oss.model,
@@ -46,13 +46,13 @@ class TestSynthesisSubstitution(TestCase):
 
         self.substitution = Substitution.objects.create(
             operation=self.operation3,
-            original=self.ks1x1,
-            substitution=self.ks2x1
+            original=self.ks1X1,
+            substitution=self.ks2X1
         )
 
 
     def test_str(self):
-        testStr = f'{self.ks1x1} -> {self.ks2x1}'
+        testStr = f'{self.ks1X1} -> {self.ks2X1}'
         self.assertEqual(str(self.substitution), testStr)
 
 
@@ -64,11 +64,11 @@ class TestSynthesisSubstitution(TestCase):
 
     def test_cascade_delete_original(self):
         self.assertEqual(Substitution.objects.count(), 1)
-        self.ks1x1.delete()
+        self.ks1X1.delete()
         self.assertEqual(Substitution.objects.count(), 0)
 
 
     def test_cascade_delete_substitution(self):
         self.assertEqual(Substitution.objects.count(), 1)
-        self.ks2x1.delete()
+        self.ks2X1.delete()
         self.assertEqual(Substitution.objects.count(), 0)
diff --git a/rsconcept/backend/apps/oss/tests/s_views/__init__.py b/rsconcept/backend/apps/oss/tests/s_views/__init__.py
index 71c01380..a5a2e6cb 100644
--- a/rsconcept/backend/apps/oss/tests/s_views/__init__.py
+++ b/rsconcept/backend/apps/oss/tests/s_views/__init__.py
@@ -1,3 +1,4 @@
 ''' Tests for REST API. '''
 from .t_change_attributes import *
+from .t_change_constituents import *
 from .t_oss import *
diff --git a/rsconcept/backend/apps/oss/tests/s_views/t_change_attributes.py b/rsconcept/backend/apps/oss/tests/s_views/t_change_attributes.py
index 280165a8..6dcdb108 100644
--- a/rsconcept/backend/apps/oss/tests/s_views/t_change_attributes.py
+++ b/rsconcept/backend/apps/oss/tests/s_views/t_change_attributes.py
@@ -1,7 +1,4 @@
 ''' Testing API: Change attributes of OSS and RSForms. '''
-
-from rest_framework import status
-
 from apps.library.models import AccessPolicy, Editor, LocationHead
 from apps.oss.models import Operation, OperationSchema, OperationType
 from apps.rsform.models import RSForm
diff --git a/rsconcept/backend/apps/oss/tests/s_views/t_change_constituents.py b/rsconcept/backend/apps/oss/tests/s_views/t_change_constituents.py
new file mode 100644
index 00000000..af04af57
--- /dev/null
+++ b/rsconcept/backend/apps/oss/tests/s_views/t_change_constituents.py
@@ -0,0 +1,86 @@
+''' Testing API: Change constituents in OSS. '''
+
+from apps.oss.models import OperationSchema, OperationType
+from apps.rsform.models import Constituenta, CstType, RSForm
+from shared.EndpointTester import EndpointTester, decl_endpoint
+
+
+class TestChangeConstituents(EndpointTester):
+    ''' Testing Constituents change propagation in OSS. '''
+
+    def setUp(self):
+        super().setUp()
+        self.owned = OperationSchema.create(
+            title='Test',
+            alias='T1',
+            owner=self.user
+        )
+        self.owned_id = self.owned.model.pk
+
+        self.ks1 = RSForm.create(
+            alias='KS1',
+            title='Test1',
+            owner=self.user
+        )
+        self.ks1X1 = self.ks1.insert_new('X4')
+        self.ks1X2 = self.ks1.insert_new('X5')
+
+        self.ks2 = RSForm.create(
+            alias='KS2',
+            title='Test2',
+            owner=self.user
+        )
+        self.ks2X1 = self.ks2.insert_new('X1')
+        self.ks2D1 = self.ks2.insert_new(
+            alias='D1',
+            definition_formal=r'X1\X1'
+        )
+
+        self.operation1 = self.owned.create_operation(
+            alias='1',
+            operation_type=OperationType.INPUT,
+            result=self.ks1.model
+        )
+        self.operation2 = self.owned.create_operation(
+            alias='2',
+            operation_type=OperationType.INPUT,
+            result=self.ks2.model
+        )
+
+        self.operation3 = self.owned.create_operation(
+            alias='3',
+            operation_type=OperationType.SYNTHESIS
+        )
+        self.owned.set_arguments(self.operation3, [self.operation1, self.operation2])
+        self.owned.execute_operation(self.operation3)
+        self.operation3.refresh_from_db()
+        self.ks3 = RSForm(self.operation3.result)
+        self.assertEqual(self.ks3.constituents().count(), 4)
+
+
+    @decl_endpoint('/api/rsforms/{item}/create-cst', method='post')
+    def test_create_constituenta(self):
+        data = {
+            'alias': 'X3',
+            'cst_type': CstType.BASE,
+            'definition_formal': 'X4 = X5'
+        }
+        response = self.executeCreated(data=data, item=self.ks1.model.pk)
+        new_cst = Constituenta.objects.get(pk=response.data['new_cst']['id'])
+        inherited_cst = Constituenta.objects.get(as_child__parent_id=new_cst.pk)
+        self.assertEqual(self.ks1.constituents().count(), 3)
+        self.assertEqual(self.ks3.constituents().count(), 5)
+        self.assertEqual(inherited_cst.alias, 'X4')
+        self.assertEqual(inherited_cst.order, 3)
+        self.assertEqual(inherited_cst.definition_formal, 'X1 = X2')
+
+    @decl_endpoint('/api/rsforms/{item}/rename-cst', method='patch')
+    def test_rename_constituenta(self):
+        data = {'target': self.ks1X1.pk, 'alias': 'D21', 'cst_type': CstType.TERM}
+        response = self.executeOK(data=data, item=self.ks1.model.pk)
+        self.ks1X1.refresh_from_db()
+        inherited_cst = Constituenta.objects.get(as_child__parent_id=self.ks1X1.pk)
+        self.assertEqual(self.ks1X1.alias, data['alias'])
+        self.assertEqual(self.ks1X1.cst_type, data['cst_type'])
+        self.assertEqual(inherited_cst.alias, 'D2')
+        self.assertEqual(inherited_cst.cst_type, data['cst_type'])
diff --git a/rsconcept/backend/apps/oss/tests/s_views/t_oss.py b/rsconcept/backend/apps/oss/tests/s_views/t_oss.py
index 2a4fce62..74df29da 100644
--- a/rsconcept/backend/apps/oss/tests/s_views/t_oss.py
+++ b/rsconcept/backend/apps/oss/tests/s_views/t_oss.py
@@ -1,8 +1,5 @@
 ''' Testing API: Operation Schema. '''
-
-from rest_framework import status
-
-from apps.library.models import AccessPolicy, Editor, LibraryItem, LibraryItemType, LocationHead
+from apps.library.models import AccessPolicy, Editor, LibraryItem, LibraryItemType
 from apps.oss.models import Operation, OperationSchema, OperationType
 from apps.rsform.models import RSForm
 from shared.EndpointTester import EndpointTester, decl_endpoint
@@ -28,7 +25,7 @@ class TestOssViewset(EndpointTester):
             title='Test1',
             owner=self.user
         )
-        self.ks1x1 = self.ks1.insert_new(
+        self.ks1X1 = self.ks1.insert_new(
             'X1',
             term_raw='X1_1',
             term_resolved='X1_1'
@@ -38,7 +35,7 @@ class TestOssViewset(EndpointTester):
             title='Test2',
             owner=self.user
         )
-        self.ks2x1 = self.ks2.insert_new(
+        self.ks2X1 = self.ks2.insert_new(
             'X2',
             term_raw='X1_2',
             term_resolved='X1_2'
@@ -60,8 +57,8 @@ class TestOssViewset(EndpointTester):
         )
         self.owned.set_arguments(self.operation3, [self.operation1, self.operation2])
         self.owned.set_substitutions(self.operation3, [{
-            'original': self.ks1x1,
-            'substitution': self.ks2x1
+            'original': self.ks1X1,
+            'substitution': self.ks2X1
         }])
 
     @decl_endpoint('/api/oss/{item}/details', method='get')
@@ -85,12 +82,12 @@ class TestOssViewset(EndpointTester):
         self.assertEqual(len(response.data['substitutions']), 1)
         sub = response.data['substitutions'][0]
         self.assertEqual(sub['operation'], self.operation3.pk)
-        self.assertEqual(sub['original'], self.ks1x1.pk)
-        self.assertEqual(sub['substitution'], self.ks2x1.pk)
-        self.assertEqual(sub['original_alias'], self.ks1x1.alias)
-        self.assertEqual(sub['original_term'], self.ks1x1.term_resolved)
-        self.assertEqual(sub['substitution_alias'], self.ks2x1.alias)
-        self.assertEqual(sub['substitution_term'], self.ks2x1.term_resolved)
+        self.assertEqual(sub['original'], self.ks1X1.pk)
+        self.assertEqual(sub['substitution'], self.ks2X1.pk)
+        self.assertEqual(sub['original_alias'], self.ks1X1.alias)
+        self.assertEqual(sub['original_term'], self.ks1X1.term_resolved)
+        self.assertEqual(sub['substitution_alias'], self.ks2X1.alias)
+        self.assertEqual(sub['substitution_term'], self.ks2X1.term_resolved)
 
         arguments = response.data['arguments']
         self.assertEqual(len(arguments), 2)
@@ -369,14 +366,14 @@ class TestOssViewset(EndpointTester):
             'arguments': [self.operation1.pk, self.operation2.pk],
             'substitutions': [
                 {
-                    'original': self.ks1x1.pk,
+                    'original': self.ks1X1.pk,
                     'substitution': ks3x1.pk
                 }
             ]
         }
         self.executeBadData(data=data)
 
-        data['substitutions'][0]['substitution'] = self.ks2x1.pk
+        data['substitutions'][0]['substitution'] = self.ks2X1.pk
         self.toggle_admin(True)
         self.executeBadData(data=data, item=self.unowned_id)
         self.logout()
@@ -421,7 +418,7 @@ class TestOssViewset(EndpointTester):
     def test_update_operation_invalid_substitution(self):
         self.populateData()
 
-        self.ks1x2 = self.ks1.insert_new('X2')
+        self.ks1X2 = self.ks1.insert_new('X2')
 
         data = {
             'target': self.operation3.pk,
@@ -434,12 +431,12 @@ class TestOssViewset(EndpointTester):
             'arguments': [self.operation1.pk, self.operation2.pk],
             'substitutions': [
                 {
-                    'original': self.ks1x1.pk,
-                    'substitution': self.ks2x1.pk
+                    'original': self.ks1X1.pk,
+                    'substitution': self.ks2X1.pk
                 },
                 {
-                    'original': self.ks2x1.pk,
-                    'substitution': self.ks1x2.pk
+                    'original': self.ks2X1.pk,
+                    'substitution': self.ks1X2.pk
                 }
             ]
         }
@@ -473,4 +470,4 @@ class TestOssViewset(EndpointTester):
         items = list(RSForm(schema).constituents())
         self.assertEqual(len(items), 1)
         self.assertEqual(items[0].alias, 'X1')
-        self.assertEqual(items[0].term_resolved, self.ks2x1.term_resolved)
+        self.assertEqual(items[0].term_resolved, self.ks2X1.term_resolved)
diff --git a/rsconcept/backend/apps/rsform/models/Constituenta.py b/rsconcept/backend/apps/rsform/models/Constituenta.py
index 17958414..16375ac9 100644
--- a/rsconcept/backend/apps/rsform/models/Constituenta.py
+++ b/rsconcept/backend/apps/rsform/models/Constituenta.py
@@ -1,6 +1,7 @@
 ''' Models: Constituenta. '''
 import re
 
+from cctext import extract_entities
 from django.core.validators import MinValueValidator
 from django.db.models import (
     CASCADE,
@@ -15,10 +16,16 @@ from django.db.models import (
 
 from ..utils import apply_pattern
 
+_RE_GLOBALS = r'[XCSADFPT]\d+'  # cspell:disable-line
 _REF_ENTITY_PATTERN = re.compile(r'@{([^0-9\-].*?)\|.*?}')
 _GLOBAL_ID_PATTERN = re.compile(r'([XCSADFPT][0-9]+)')  # cspell:disable-line
 
 
+def extract_globals(expression: str) -> set[str]:
+    ''' Extract all global aliases from expression. '''
+    return set(re.findall(_RE_GLOBALS, expression))
+
+
 class CstType(TextChoices):
     ''' Type of constituenta. '''
     BASE = 'basic'
@@ -120,3 +127,10 @@ class Constituenta(Model):
             modified = True
             self.definition_raw = definition
         return modified
+
+    def extract_references(self) -> set[str]:
+        ''' Extract all references from term and definition. '''
+        result: set[str] = extract_globals(self.definition_formal)
+        result.update(extract_entities(self.term_raw))
+        result.update(extract_entities(self.definition_raw))
+        return result
diff --git a/rsconcept/backend/apps/rsform/models/RSForm.py b/rsconcept/backend/apps/rsform/models/RSForm.py
index 8af2bb08..03fcdfa9 100644
--- a/rsconcept/backend/apps/rsform/models/RSForm.py
+++ b/rsconcept/backend/apps/rsform/models/RSForm.py
@@ -11,7 +11,6 @@ from shared import messages as msg
 
 from ..graph import Graph
 from .api_RSLanguage import (
-    extract_globals,
     generate_structure,
     get_type_prefix,
     guess_type,
@@ -21,9 +20,9 @@ from .api_RSLanguage import (
     is_simple_expression,
     split_template
 )
-from .Constituenta import Constituenta, CstType
+from .Constituenta import Constituenta, CstType, extract_globals
 
-_INSERT_LAST: int = -1
+INSERT_LAST: int = -1
 
 
 class RSForm:
@@ -54,7 +53,7 @@ class RSForm:
             self.by_alias = {cst.alias: cst for cst in self.constituents}
             self.is_loaded = True
 
-        def ensure(self) -> None:
+        def ensure_loaded(self) -> None:
             if not self.is_loaded:
                 self.reload()
 
@@ -140,7 +139,7 @@ class RSForm:
 
     def on_term_change(self, changed: list[int]) -> None:
         ''' Trigger cascade resolutions when term changes. '''
-        self.cache.ensure()
+        self.cache.ensure_loaded()
         graph_terms = self._graph_term()
         expansion = graph_terms.expand_outputs(changed)
         expanded_change = changed + expansion
@@ -188,7 +187,7 @@ class RSForm:
     def create_cst(self, data: dict, insert_after: Optional[Constituenta] = None) -> Constituenta:
         ''' Create new cst from data. '''
         if insert_after is None:
-            position = _INSERT_LAST
+            position = INSERT_LAST
         else:
             position = insert_after.order + 1
         result = self.insert_new(data['alias'], data['cst_type'], position)
@@ -217,7 +216,7 @@ class RSForm:
         self,
         alias: str,
         cst_type: Optional[CstType] = None,
-        position: int = _INSERT_LAST,
+        position: int = INSERT_LAST,
         **kwargs
     ) -> Constituenta:
         ''' Insert new constituenta at given position.
@@ -239,13 +238,14 @@ class RSForm:
         self.save()
         return result
 
-    def insert_copy(self, items: list[Constituenta], position: int = _INSERT_LAST) -> list[Constituenta]:
+    def insert_copy(self, items: list[Constituenta], position: int = INSERT_LAST,
+                    initial_mapping: Optional[dict[str, str]] = None) -> list[Constituenta]:
         ''' Insert copy of target constituents updating references. '''
         count = len(items)
         if count == 0:
             return []
 
-        self.cache.ensure()
+        self.cache.ensure_loaded()
         position = self._get_insert_position(position)
         self._shift_positions(position, count)
 
@@ -253,7 +253,7 @@ class RSForm:
         for (value, _) in CstType.choices:
             indices[value] = self.get_max_index(cast(CstType, value))
 
-        mapping: dict[str, str] = {}
+        mapping: dict[str, str] = initial_mapping.copy() if initial_mapping else {}
         for cst in items:
             indices[cst.cst_type] = indices[cst.cst_type] + 1
             newAlias = f'{get_type_prefix(cst.cst_type)}{indices[cst.cst_type]}'
@@ -344,9 +344,23 @@ class RSForm:
                 mapping[cst.alias] = alias
         return mapping
 
+    def change_cst_type(self, target: int, new_type: CstType) -> bool:
+        ''' Change type of constituenta generating alias automatically. '''
+        self.cache.ensure_loaded()
+        cst = self.cache.by_id.get(target)
+        if cst is None:
+            return False
+        newAlias = f'{get_type_prefix(new_type)}{self.get_max_index(new_type) + 1}'
+        mapping = {cst.alias: newAlias}
+        cst.cst_type = new_type
+        cst.alias = newAlias
+        cst.save(update_fields=['cst_type', 'alias'])
+        self.apply_mapping(mapping)
+        return True
+
     def apply_mapping(self, mapping: dict[str, str], change_aliases: bool = False) -> None:
         ''' Apply rename mapping. '''
-        self.cache.ensure()
+        self.cache.ensure_loaded()
         update_list: list[Constituenta] = []
         for cst in self.cache.constituents:
             if cst.apply_mapping(mapping, change_aliases):
@@ -356,7 +370,7 @@ class RSForm:
 
     def resolve_all_text(self) -> None:
         ''' Trigger reference resolution for all texts. '''
-        self.cache.ensure()
+        self.cache.ensure_loaded()
         graph_terms = self._graph_term()
         resolver = Resolver({})
         update_list: list[Constituenta] = []
@@ -395,7 +409,7 @@ class RSForm:
             return []
 
         position = target.order + 1
-        self.cache.ensure()
+        self.cache.ensure_loaded()
         self._shift_positions(position, count_new)
         result = []
         cst_type = CstType.TERM if len(parse['args']) == 0 else CstType.FUNCTION
@@ -432,10 +446,10 @@ class RSForm:
         Constituenta.objects.bulk_update(update_list, ['order'])
 
     def _get_insert_position(self, position: int) -> int:
-        if position <= 0 and position != _INSERT_LAST:
+        if position <= 0 and position != INSERT_LAST:
             raise ValidationError(msg.invalidPosition())
         lastPosition = self.constituents().count()
-        if position == _INSERT_LAST:
+        if position == INSERT_LAST:
             position = lastPosition + 1
         else:
             position = max(1, min(position, lastPosition + 1))
@@ -458,7 +472,7 @@ class RSForm:
 
     def _graph_formal(self) -> Graph[int]:
         ''' Graph based on formal definitions. '''
-        self.cache.ensure()
+        self.cache.ensure_loaded()
         result: Graph[int] = Graph()
         for cst in self.cache.constituents:
             result.add_node(cst.pk)
@@ -471,7 +485,7 @@ class RSForm:
 
     def _graph_term(self) -> Graph[int]:
         ''' Graph based on term texts. '''
-        self.cache.ensure()
+        self.cache.ensure_loaded()
         result: Graph[int] = Graph()
         for cst in self.cache.constituents:
             result.add_node(cst.pk)
@@ -484,7 +498,7 @@ class RSForm:
 
     def _graph_text(self) -> Graph[int]:
         ''' Graph based on definition texts. '''
-        self.cache.ensure()
+        self.cache.ensure_loaded()
         result: Graph[int] = Graph()
         for cst in self.cache.constituents:
             result.add_node(cst.pk)
@@ -500,7 +514,7 @@ class SemanticInfo:
     ''' Semantic information derived from constituents. '''
 
     def __init__(self, schema: RSForm):
-        schema.cache.ensure()
+        schema.cache.ensure_loaded()
         self._graph = schema._graph_formal()
         self._items = schema.cache.constituents
         self._cst_by_ID = schema.cache.by_id
diff --git a/rsconcept/backend/apps/rsform/models/__init__.py b/rsconcept/backend/apps/rsform/models/__init__.py
index 132f6d46..481d7a84 100644
--- a/rsconcept/backend/apps/rsform/models/__init__.py
+++ b/rsconcept/backend/apps/rsform/models/__init__.py
@@ -1,4 +1,4 @@
 ''' Django: Models. '''
 
-from .Constituenta import Constituenta, CstType
-from .RSForm import RSForm
+from .Constituenta import Constituenta, CstType, extract_globals
+from .RSForm import INSERT_LAST, RSForm
diff --git a/rsconcept/backend/apps/rsform/models/api_RSLanguage.py b/rsconcept/backend/apps/rsform/models/api_RSLanguage.py
index 26daa1bb..9968f8a7 100644
--- a/rsconcept/backend/apps/rsform/models/api_RSLanguage.py
+++ b/rsconcept/backend/apps/rsform/models/api_RSLanguage.py
@@ -2,7 +2,7 @@
 import json
 import re
 from enum import IntEnum, unique
-from typing import Set, Tuple, cast
+from typing import Tuple, cast
 
 import pyconcept
 
@@ -10,7 +10,6 @@ from shared import messages as msg
 
 from .Constituenta import CstType
 
-_RE_GLOBALS = r'[XCSADFPT]\d+'  # cspell:disable-line
 _RE_TEMPLATE = r'R\d+'
 _RE_COMPLEX_SYMBOLS = r'[∀∃×ℬ;|:]'
 
@@ -67,11 +66,6 @@ def is_functional(cst_type: CstType) -> bool:
     ]
 
 
-def extract_globals(expression: str) -> Set[str]:
-    ''' Extract all global aliases from expression. '''
-    return set(re.findall(_RE_GLOBALS, expression))
-
-
 def guess_type(alias: str) -> CstType:
     ''' Get CstType for alias. '''
     prefix = alias[0]
diff --git a/rsconcept/backend/apps/rsform/serializers/data_access.py b/rsconcept/backend/apps/rsform/serializers/data_access.py
index 08a7abf6..af9a309d 100644
--- a/rsconcept/backend/apps/rsform/serializers/data_access.py
+++ b/rsconcept/backend/apps/rsform/serializers/data_access.py
@@ -121,7 +121,7 @@ class RSFormSerializer(serializers.ModelSerializer):
         for link in Inheritance.objects.filter(Q(child__schema=instance) | Q(parent__schema=instance)):
             result['inheritance'].append([link.child.pk, link.parent.pk])
         result['oss'] = []
-        for oss in LibraryItem.objects.filter(items__result=instance).only('alias'):
+        for oss in LibraryItem.objects.filter(operations__result=instance).only('alias'):
             result['oss'].append({
                 'id': oss.pk,
                 'alias': oss.alias
@@ -246,7 +246,7 @@ class CstTargetSerializer(serializers.Serializer):
 
 class CstRenameSerializer(serializers.Serializer):
     ''' Serializer: Constituenta renaming. '''
-    target = PKField(many=False, queryset=Constituenta.objects.only('alias', 'schema'))
+    target = PKField(many=False, queryset=Constituenta.objects.only('alias', 'cst_type', 'schema'))
     alias = serializers.CharField()
     cst_type = serializers.CharField()
 
diff --git a/rsconcept/backend/apps/rsform/tests/s_models/t_Constituenta.py b/rsconcept/backend/apps/rsform/tests/s_models/t_Constituenta.py
index cda9806b..4f817542 100644
--- a/rsconcept/backend/apps/rsform/tests/s_models/t_Constituenta.py
+++ b/rsconcept/backend/apps/rsform/tests/s_models/t_Constituenta.py
@@ -58,3 +58,28 @@ class TestConstituenta(TestCase):
         self.assertEqual(cst.term_forms, [])
         self.assertEqual(cst.definition_resolved, '')
         self.assertEqual(cst.definition_raw, '')
+
+    def test_extract_references(self):
+        cst = Constituenta.objects.create(
+            alias='X1',
+            order=1,
+            schema=self.schema1.model,
+            definition_formal='X1 X2',
+            term_raw='@{X3|sing} is a @{X4|sing}',
+            definition_raw='@{X5|sing}'
+        )
+        self.assertEqual(cst.extract_references(), set(['X1', 'X2', 'X3', 'X4', 'X5']))
+
+    def text_apply_mapping(self):
+        cst = Constituenta.objects.create(
+            alias='X1',
+            order=1,
+            schema=self.schema1.model,
+            definition_formal='X1 = X2',
+            term_raw='@{X1|sing}',
+            definition_raw='@{X2|sing}'
+        )
+        cst.apply_mapping({'X1': 'X3', 'X2': 'X4'})
+        self.assertEqual(cst.definition_formal, 'X3 = X4')
+        self.assertEqual(cst.term_raw, '@{X3|sing}')
+        self.assertEqual(cst.definition_raw, '@{X4|sing}')
diff --git a/rsconcept/backend/apps/rsform/tests/s_views/t_rsforms.py b/rsconcept/backend/apps/rsform/tests/s_views/t_rsforms.py
index a5fb9103..86339300 100644
--- a/rsconcept/backend/apps/rsform/tests/s_views/t_rsforms.py
+++ b/rsconcept/backend/apps/rsform/tests/s_views/t_rsforms.py
@@ -183,9 +183,10 @@ class TestRSFormViewset(EndpointTester):
 
     @decl_endpoint('/api/rsforms/{item}/create-cst', method='post')
     def test_create_constituenta(self):
-        data = {'alias': 'X3'}
+        data = {'alias': 'X3', 'cst_type': CstType.BASE}
         self.executeForbidden(data=data, item=self.unowned_id)
 
+        data = {'alias': 'X3'}
         self.owned.insert_new('X1')
         x2 = self.owned.insert_new('X2')
         self.executeBadData(item=self.owned_id)
diff --git a/rsconcept/backend/apps/rsform/views/rsforms.py b/rsconcept/backend/apps/rsform/views/rsforms.py
index a681fe1b..816a1e35 100644
--- a/rsconcept/backend/apps/rsform/views/rsforms.py
+++ b/rsconcept/backend/apps/rsform/views/rsforms.py
@@ -16,6 +16,7 @@ from rest_framework.serializers import ValidationError
 
 from apps.library.models import AccessPolicy, LibraryItem, LibraryItemType, LocationHead
 from apps.library.serializers import LibraryItemSerializer
+from apps.oss.models import ChangeManager
 from apps.users.models import User
 from shared import messages as msg
 from shared import permissions, utility
@@ -76,7 +77,6 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
     @action(detail=True, methods=['post'], url_path='create-cst')
     def create_cst(self, request: Request, pk) -> HttpResponse:
         ''' Create new constituenta. '''
-        schema = self._get_item()
         serializer = s.CstCreateSerializer(data=request.data)
         serializer.is_valid(raise_exception=True)
         data = serializer.validated_data
@@ -86,13 +86,18 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
             insert_after = data['insert_after']
 
         with transaction.atomic():
-            new_cst = m.RSForm(schema).create_cst(data, insert_after)
+            schema = m.RSForm(self._get_item())
+            new_cst = schema.create_cst(data, insert_after)
+            hosts = LibraryItem.objects.filter(operations__result=schema.model)
+            for host in hosts:
+                ChangeManager(host).on_create_cst(new_cst, schema)
+
 
         return Response(
             status=c.HTTP_201_CREATED,
             data={
                 'new_cst': s.CstSerializer(new_cst).data,
-                'schema': s.RSFormParseSerializer(schema).data
+                'schema': s.RSFormParseSerializer(schema.model).data
             }
         )
 
@@ -119,7 +124,10 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
             raise ValidationError({
                 'schema': msg.constituentaNotInRSform(schema.title)
             })
-        serializer.update(instance=cst, validated_data=serializer.validated_data)
+
+        with transaction.atomic():
+            serializer.update(instance=cst, validated_data=serializer.validated_data)
+            # 'convention' | 'definition_formal' | 'definition_raw' | 'term_raw' | 'term_forms'
 
         return Response(
             status=c.HTTP_200_OK,
@@ -140,9 +148,9 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
     @action(detail=True, methods=['patch'], url_path='produce-structure')
     def produce_structure(self, request: Request, pk) -> HttpResponse:
         ''' Produce a term for every element of the target constituenta typification. '''
-        schema = self._get_item()
+        model = self._get_item()
 
-        serializer = s.CstTargetSerializer(data=request.data, context={'schema': schema})
+        serializer = s.CstTargetSerializer(data=request.data, context={'schema': model})
         serializer.is_valid(raise_exception=True)
         cst = cast(m.Constituenta, serializer.validated_data['target'])
         if cst.cst_type not in [m.CstType.FUNCTION, m.CstType.STRUCTURED, m.CstType.TERM]:
@@ -150,7 +158,7 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
                 f'{cst.pk}': msg.constituentaNoStructure()
             })
 
-        schema_details = s.RSFormParseSerializer(schema).data['items']
+        schema_details = s.RSFormParseSerializer(model).data['items']
         cst_parse = next(item for item in schema_details if item['id'] == cst.pk)['parse']
         if not cst_parse['typification']:
             return Response(
@@ -158,12 +166,12 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
                 data={f'{cst.pk}': msg.constituentaNoStructure()}
             )
         with transaction.atomic():
-            result = m.RSForm(schema).produce_structure(cst, cst_parse)
+            result = m.RSForm(model).produce_structure(cst, cst_parse)
         return Response(
             status=c.HTTP_200_OK,
             data={
                 'cst_list': result,
-                'schema': s.RSFormParseSerializer(schema).data
+                'schema': s.RSFormParseSerializer(model).data
             }
         )
 
@@ -181,26 +189,31 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
     @action(detail=True, methods=['patch'], url_path='rename-cst')
     def rename_cst(self, request: Request, pk) -> HttpResponse:
         ''' Rename constituenta possibly changing type. '''
-        schema = self._get_item()
-        serializer = s.CstRenameSerializer(data=request.data, context={'schema': schema})
+        model = self._get_item()
+        serializer = s.CstRenameSerializer(data=request.data, context={'schema': model})
         serializer.is_valid(raise_exception=True)
 
         cst = cast(m.Constituenta, serializer.validated_data['target'])
+        changed_type = cst.cst_type != serializer.validated_data['cst_type']
         mapping = {cst.alias: serializer.validated_data['alias']}
         cst.alias = serializer.validated_data['alias']
         cst.cst_type = serializer.validated_data['cst_type']
+        schema = m.RSForm(model)
 
         with transaction.atomic():
             cst.save()
-            m.RSForm(schema).apply_mapping(mapping=mapping, change_aliases=False)
+            schema.apply_mapping(mapping=mapping, change_aliases=False)
+            cst.refresh_from_db()
+            if changed_type:
+                hosts = LibraryItem.objects.filter(operations__result=model)
+                for host in hosts:
+                    ChangeManager(host).on_change_cst_type(cst, schema)
 
-        schema.refresh_from_db()
-        cst.refresh_from_db()
         return Response(
             status=c.HTTP_200_OK,
             data={
                 'new_cst': s.CstSerializer(cst).data,
-                'schema': s.RSFormParseSerializer(schema).data
+                'schema': s.RSFormParseSerializer(model).data
             }
         )
 
@@ -218,10 +231,10 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
     @action(detail=True, methods=['patch'], url_path='substitute')
     def substitute(self, request: Request, pk) -> HttpResponse:
         ''' Substitute occurrences of constituenta with another one. '''
-        schema = self._get_item()
+        model = self._get_item()
         serializer = s.CstSubstituteSerializer(
             data=request.data,
-            context={'schema': schema}
+            context={'schema': model}
         )
         serializer.is_valid(raise_exception=True)
 
@@ -231,12 +244,12 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
                 original = cast(m.Constituenta, substitution['original'])
                 replacement = cast(m.Constituenta, substitution['substitution'])
                 substitutions.append((original, replacement))
-            m.RSForm(schema).substitute(substitutions)
+            m.RSForm(model).substitute(substitutions)
 
-        schema.refresh_from_db()
+        model.refresh_from_db()
         return Response(
             status=c.HTTP_200_OK,
-            data=s.RSFormParseSerializer(schema).data
+            data=s.RSFormParseSerializer(model).data
         )
 
     @extend_schema(
@@ -253,17 +266,17 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
     @action(detail=True, methods=['patch'], url_path='delete-multiple-cst')
     def delete_multiple_cst(self, request: Request, pk) -> HttpResponse:
         ''' Endpoint: Delete multiple constituents. '''
-        schema = self._get_item()
+        model = self._get_item()
         serializer = s.CstListSerializer(
             data=request.data,
-            context={'schema': schema}
+            context={'schema': model}
         )
         serializer.is_valid(raise_exception=True)
         with transaction.atomic():
-            m.RSForm(schema).delete_cst(serializer.validated_data['items'])
+            m.RSForm(model).delete_cst(serializer.validated_data['items'])
         return Response(
             status=c.HTTP_200_OK,
-            data=s.RSFormParseSerializer(schema).data
+            data=s.RSFormParseSerializer(model).data
         )
 
     @extend_schema(
@@ -280,20 +293,20 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
     @action(detail=True, methods=['patch'], url_path='move-cst')
     def move_cst(self, request: Request, pk) -> HttpResponse:
         ''' Endpoint: Move multiple constituents. '''
-        schema = self._get_item()
+        model = self._get_item()
         serializer = s.CstMoveSerializer(
             data=request.data,
-            context={'schema': schema}
+            context={'schema': model}
         )
         serializer.is_valid(raise_exception=True)
         with transaction.atomic():
-            m.RSForm(schema).move_cst(
+            m.RSForm(model).move_cst(
                 target=serializer.validated_data['items'],
                 destination=serializer.validated_data['move_to']
             )
         return Response(
             status=c.HTTP_200_OK,
-            data=s.RSFormParseSerializer(schema).data
+            data=s.RSFormParseSerializer(model).data
         )
 
     @extend_schema(
@@ -309,11 +322,11 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
     @action(detail=True, methods=['patch'], url_path='reset-aliases')
     def reset_aliases(self, request: Request, pk) -> HttpResponse:
         ''' Endpoint: Recreate all aliases based on order. '''
-        schema = self._get_item()
-        m.RSForm(schema).reset_aliases()
+        model = self._get_item()
+        m.RSForm(model).reset_aliases()
         return Response(
             status=c.HTTP_200_OK,
-            data=s.RSFormParseSerializer(schema).data
+            data=s.RSFormParseSerializer(model).data
         )
 
     @extend_schema(
@@ -329,11 +342,11 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
     @action(detail=True, methods=['patch'], url_path='restore-order')
     def restore_order(self, request: Request, pk) -> HttpResponse:
         ''' Endpoint: Restore order based on types and term graph. '''
-        schema = self._get_item()
-        m.RSForm(schema).restore_order()
+        model = self._get_item()
+        m.RSForm(model).restore_order()
         return Response(
             status=c.HTTP_200_OK,
-            data=s.RSFormParseSerializer(schema).data
+            data=s.RSFormParseSerializer(model).data
         )
 
     @extend_schema(
@@ -353,10 +366,10 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
         input_serializer = s.RSFormUploadSerializer(data=request.data)
         input_serializer.is_valid(raise_exception=True)
 
-        schema = self._get_item()
+        model = self._get_item()
         load_metadata = input_serializer.validated_data['load_metadata']
         data = utility.read_zipped_json(request.FILES['file'].file, utils.EXTEOR_INNER_FILENAME)
-        data['id'] = schema.pk
+        data['id'] = model.pk
 
         serializer = s.RSFormTRSSerializer(
             data=data,
@@ -461,10 +474,10 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
     @action(detail=True, methods=['get'], url_path='export-trs')
     def export_trs(self, request: Request, pk) -> HttpResponse:
         ''' Endpoint: Download Exteor compatible file. '''
-        schema = self._get_item()
-        data = s.RSFormTRSSerializer(m.RSForm(schema)).data
+        model = self._get_item()
+        data = s.RSFormTRSSerializer(m.RSForm(model)).data
         file = utility.write_zipped_json(data, utils.EXTEOR_INNER_FILENAME)
-        filename = utils.filename_for_schema(schema.alias)
+        filename = utils.filename_for_schema(model.alias)
         response = HttpResponse(file, content_type='application/zip')
         response['Content-Disposition'] = f'attachment; filename={filename}'
         return response
diff --git a/rsconcept/frontend/src/components/ui/TextArea.tsx b/rsconcept/frontend/src/components/ui/TextArea.tsx
index adbfb620..7e165471 100644
--- a/rsconcept/frontend/src/components/ui/TextArea.tsx
+++ b/rsconcept/frontend/src/components/ui/TextArea.tsx
@@ -25,7 +25,7 @@ function TextArea({
     <div
       className={clsx(
         {
-          'flex flex-col flex-grow gap-2': !dense,
+          'flex flex-col gap-2': !dense,
           'flex flex-grow items-center gap-3': dense
         },
         dense && className
diff --git a/rsconcept/frontend/src/models/rsform.ts b/rsconcept/frontend/src/models/rsform.ts
index b81ef9c2..396e9e2f 100644
--- a/rsconcept/frontend/src/models/rsform.ts
+++ b/rsconcept/frontend/src/models/rsform.ts
@@ -155,10 +155,7 @@ export interface ICstMovetoData extends IConstituentaList {
 export interface ICstUpdateData
   extends Pick<IConstituentaMeta, 'id'>,
     Partial<
-      Pick<
-        IConstituentaMeta,
-        'alias' | 'convention' | 'definition_formal' | 'definition_raw' | 'term_raw' | 'term_forms'
-      >
+      Pick<IConstituentaMeta, 'convention' | 'definition_formal' | 'definition_raw' | 'term_raw' | 'term_forms'>
     > {}
 
 /**
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/FormConstituenta.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/FormConstituenta.tsx
index b63fbb0c..ace20054 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/FormConstituenta.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/FormConstituenta.tsx
@@ -55,7 +55,6 @@ function FormConstituenta({
 }: FormConstituentaProps) {
   const { schema, cstUpdate, processing } = useRSForm();
 
-  const [alias, setAlias] = useState('');
   const [term, setTerm] = useState('');
   const [textDefinition, setTextDefinition] = useState('');
   const [expression, setExpression] = useState('');
@@ -98,7 +97,6 @@ function FormConstituenta({
 
   useLayoutEffect(() => {
     if (state) {
-      setAlias(state.alias);
       setConvention(state.convention || '');
       setTerm(state.term_raw || '');
       setTextDefinition(state.definition_raw || '');
@@ -117,7 +115,6 @@ function FormConstituenta({
     }
     const data: ICstUpdateData = {
       id: state.id,
-      alias: alias,
       term_raw: term,
       definition_formal: expression,
       definition_raw: textDefinition,