diff --git a/webapp/packages/plugin-data-spreadsheet-new/package.json b/webapp/packages/plugin-data-spreadsheet-new/package.json
index bca6cf863ac..2b1e55e2cd8 100644
--- a/webapp/packages/plugin-data-spreadsheet-new/package.json
+++ b/webapp/packages/plugin-data-spreadsheet-new/package.json
@@ -25,6 +25,7 @@
   "dependencies": {
     "@cloudbeaver/core-blocks": "workspace:*",
     "@cloudbeaver/core-browser": "workspace:*",
+    "@cloudbeaver/core-connections": "workspace:*",
     "@cloudbeaver/core-data-context": "workspace:*",
     "@cloudbeaver/core-di": "workspace:*",
     "@cloudbeaver/core-dialogs": "workspace:*",
diff --git a/webapp/packages/plugin-data-spreadsheet-new/src/DataGrid/TableColumnHeader/TableStatusIndicator.tsx b/webapp/packages/plugin-data-spreadsheet-new/src/DataGrid/TableColumnHeader/TableStatusIndicator.tsx
index e4a5357cb86..9422a9db0bf 100644
--- a/webapp/packages/plugin-data-spreadsheet-new/src/DataGrid/TableColumnHeader/TableStatusIndicator.tsx
+++ b/webapp/packages/plugin-data-spreadsheet-new/src/DataGrid/TableColumnHeader/TableStatusIndicator.tsx
@@ -9,8 +9,9 @@ import { SqlRowIdentifierState, type SqlResultColumn } from '@cloudbeaver/core-s
 import { observer } from 'mobx-react-lite';
 import { useContext } from 'react';
 
-import { IconOrImage, s, useS, useTranslate } from '@cloudbeaver/core-blocks';
-import { isResultSetDataSource } from '@cloudbeaver/plugin-data-viewer';
+import { IconOrImage, s, useResource, useS, useTranslate } from '@cloudbeaver/core-blocks';
+import { ConnectionInfoResource, createConnectionParam } from '@cloudbeaver/core-connections';
+import { DatabaseDataFeature, isResultSetDataSource } from '@cloudbeaver/plugin-data-viewer';
 
 import { DataGridContext } from '../DataGridContext.js';
 import { TableDataContext } from '../TableDataContext.js';
@@ -20,16 +21,27 @@ import styles from './TableStatusIndicator.module.css';
 export const TableStatusIndicator = observer(function TableStatusIndicator() {
   const dataGridContext = useContext(DataGridContext);
   const tableDataContext = useContext(TableDataContext);
-  const readOnlyConnection = dataGridContext.model.isReadonly(dataGridContext.resultIndex);
   const translate = useTranslate();
+
+  const source = dataGridContext.model.source;
+  const resultSetSource = isResultSetDataSource(source) ? source : null;
+
+  /* We do NOT use `model.isReadonly()` here —
+  that method aggregates several unrelated reasons
+  and loses information about WHY editing isn't allowed. */
+  const contextInfo = resultSetSource?.executionContext?.context;
+  const connectionKey = contextInfo ? createConnectionParam(contextInfo.projectId, contextInfo.connectionId) : null;
+  const connectionInfoLoader = useResource(TableStatusIndicator, ConnectionInfoResource, connectionKey);
+  const readOnlyConnection = connectionInfoLoader.data?.readOnly ?? false;
+
+  const readOnlyPresentation = source.hasFeature(DatabaseDataFeature.Grouping);
+
   const style = useS(styles);
 
   if (!tableDataContext || !dataGridContext) {
     return null;
   }
 
-  const source = dataGridContext.model.source;
-  const resultSetSource = isResultSetDataSource(source) ? source : null;
   const rowIdentifierInfo = resultSetSource?.getRowIdentifierInfo(dataGridContext.resultIndex);
   const hasRowIdentifier = resultSetSource?.hasElementIdentifier(dataGridContext.resultIndex);
 
@@ -43,7 +55,10 @@ export const TableStatusIndicator = observer(function TableStatusIndicator() {
   const isPrimaryKey = rowIdentifierInfo?.state === SqlRowIdentifierState.PrimaryKey;
   const tooltipParts: string[] = [];
 
-  if (readOnlyConnection) {
+  // Presentation-level read-only takes precedence over connection-level read-only.
+  if (readOnlyPresentation) {
+    tooltipParts.push(translate('data_grid_table_readonly_presentation_tooltip'));
+  } else if (readOnlyConnection) {
     tooltipParts.push(translate('data_grid_table_readonly_connection_tooltip'));
   }
 
@@ -59,6 +74,15 @@ export const TableStatusIndicator = observer(function TableStatusIndicator() {
     tooltipParts.push(translate('data_grid_table_virtual_key_tooltip'));
   }
 
+  const showLockIcon = readOnlyConnection || readOnlyPresentation;
+
+  // Hide the entire indicator when there's nothing meaningful to display (Session Manager)
+  const hasInfo = showLockIcon || !!readOnlyStatus || hasRowIdentifier || isVirtualKey || isPrimaryKey;
+
+  if (!hasInfo) {
+    return null;
+  }
+
   const tooltip = tooltipParts.join('\n');
 
   return (
@@ -66,7 +90,7 @@ export const TableStatusIndicator = observer(function TableStatusIndicator() {
       title={tooltip}
       className="tw:absolute tw:top-1/2 tw:left-1 tw:-translate-y-1/2 tw:z-1 tw:pointer-events-auto tw:flex tw:items-center tw:gap-1 tw:cursor-help"
     >
-      {readOnlyConnection && <IconOrImage icon="/icons/lock.png" className="tw:w-2.5 tw:cursor-help" />}
+      {showLockIcon && <IconOrImage icon="/icons/lock.png" className="tw:w-2.5 tw:cursor-help" />}
       <div
         className={s(
           style,
diff --git a/webapp/packages/plugin-data-spreadsheet-new/src/locales/de.ts b/webapp/packages/plugin-data-spreadsheet-new/src/locales/de.ts
index 5e8516039ae..19220c2fc37 100644
--- a/webapp/packages/plugin-data-spreadsheet-new/src/locales/de.ts
+++ b/webapp/packages/plugin-data-spreadsheet-new/src/locales/de.ts
@@ -25,6 +25,7 @@ export default [
   ['data_grid_table_context_menu_filter_dialog_title', 'Wert bearbeiten'],
   ['data_grid_table_index_column_tooltip', 'Wählen ganze Tabelle aus'],
   ['data_grid_table_readonly_connection_tooltip', 'Schreibgeschützte Verbindung'],
+  ['data_grid_table_readonly_presentation_tooltip', 'Die aktive Darstellung unterstützt keine Datenbearbeitung'],
   ['data_grid_table_no_key_found_tooltip', 'Kein eindeutiger Schlüssel gefunden. Datenänderung nicht möglich.'],
   ['data_grid_table_virtual_key_tooltip', 'Virtueller Schlüssel'],
   ['data_grid_table_key_column_tooltip', 'Schlüsselspalte'],
diff --git a/webapp/packages/plugin-data-spreadsheet-new/src/locales/en.ts b/webapp/packages/plugin-data-spreadsheet-new/src/locales/en.ts
index 2190c43228a..5e5c844ec22 100644
--- a/webapp/packages/plugin-data-spreadsheet-new/src/locales/en.ts
+++ b/webapp/packages/plugin-data-spreadsheet-new/src/locales/en.ts
@@ -31,6 +31,7 @@ export default [
   ['data_grid_table_context_menu_save_value_error', 'Failed to save value'],
   ['data_grid_table_index_column_tooltip', 'Select whole table'],
   ['data_grid_table_readonly_connection_tooltip', 'Read-only connection'],
+  ['data_grid_table_readonly_presentation_tooltip', 'Read-only: Active presentation does not support data editing'],
   ['data_grid_table_no_key_found_tooltip', 'No unique key was found. Data modification is not possible.'],
   ['data_grid_table_virtual_key_tooltip', 'Virtual key'],
   ['data_grid_table_key_column_tooltip', 'Key column'],
diff --git a/webapp/packages/plugin-data-spreadsheet-new/src/locales/fr.ts b/webapp/packages/plugin-data-spreadsheet-new/src/locales/fr.ts
index 8ee3d78342d..def53d2109b 100644
--- a/webapp/packages/plugin-data-spreadsheet-new/src/locales/fr.ts
+++ b/webapp/packages/plugin-data-spreadsheet-new/src/locales/fr.ts
@@ -34,6 +34,7 @@ export default [
   ['data_grid_table_virtual_key_tooltip', 'Clé virtuelle'],
   ['data_grid_table_key_column_tooltip', 'Colonne clé'],
   ['data_grid_table_readonly_connection_tooltip', 'Connexion en lecture seule'],
+  ['data_grid_table_readonly_presentation_tooltip', 'La présentation active ne prend pas en charge la modification des données'],
   ['plugin_data_spreadsheet_new_settings_disable', 'Désactiver la présentation de la table'],
   ['plugin_data_spreadsheet_new_settings_description_label', 'Show columns description'],
   ['plugin_data_spreadsheet_new_settings_description_label_description', 'Description will be shown under the column names in the table header'],
diff --git a/webapp/packages/plugin-data-spreadsheet-new/src/locales/it.ts b/webapp/packages/plugin-data-spreadsheet-new/src/locales/it.ts
index adc3a8d40bf..c5da029667f 100644
--- a/webapp/packages/plugin-data-spreadsheet-new/src/locales/it.ts
+++ b/webapp/packages/plugin-data-spreadsheet-new/src/locales/it.ts
@@ -30,6 +30,7 @@ export default [
   ['data_grid_table_context_menu_save_value_error', 'Failed to save value'],
   ['data_grid_table_index_column_tooltip', 'Seleziona tutta la tabella'],
   ['data_grid_table_readonly_connection_tooltip', 'Connessione in sola lettura'],
+  ['data_grid_table_readonly_presentation_tooltip', 'La presentazione attiva non supporta la modifica dei dati'],
   ['data_grid_table_no_key_found_tooltip', 'Nessuna chiave univoca è stata trovata. La modifica dei dati non è possibile.'],
   ['data_grid_table_virtual_key_tooltip', 'Chiave virtuale'],
   ['data_grid_table_key_column_tooltip', 'Colonna chiave'],
diff --git a/webapp/packages/plugin-data-spreadsheet-new/src/locales/ru.ts b/webapp/packages/plugin-data-spreadsheet-new/src/locales/ru.ts
index e468993c51d..1983a22d52a 100644
--- a/webapp/packages/plugin-data-spreadsheet-new/src/locales/ru.ts
+++ b/webapp/packages/plugin-data-spreadsheet-new/src/locales/ru.ts
@@ -31,6 +31,7 @@ export default [
   ['data_grid_table_context_menu_save_value_error', 'Не удалось сохранить значение'],
   ['data_grid_table_index_column_tooltip', 'Выбрать всю таблицу'],
   ['data_grid_table_readonly_connection_tooltip', 'Подключение только для чтения'],
+  ['data_grid_table_readonly_presentation_tooltip', 'Активное представление не поддерживает редактирование данных'],
   ['data_grid_table_no_key_found_tooltip', 'Не найден уникальный ключ. Изменение данных невозможно.'],
   ['data_grid_table_virtual_key_tooltip', 'Виртуальный ключ'],
   ['data_grid_table_key_column_tooltip', 'Ключевая колонка'],
diff --git a/webapp/packages/plugin-data-spreadsheet-new/src/locales/vi.ts b/webapp/packages/plugin-data-spreadsheet-new/src/locales/vi.ts
index 05ea4c5f279..76ec8aed192 100644
--- a/webapp/packages/plugin-data-spreadsheet-new/src/locales/vi.ts
+++ b/webapp/packages/plugin-data-spreadsheet-new/src/locales/vi.ts
@@ -31,6 +31,7 @@ export default [
   ['data_grid_table_context_menu_save_value_error', 'Không thể lưu giá trị'],
   ['data_grid_table_index_column_tooltip', 'Chọn toàn bộ bảng'],
   ['data_grid_table_readonly_connection_tooltip', 'Kết nối chỉ đọc'],
+  ['data_grid_table_readonly_presentation_tooltip', 'Trình bày đang dùng không hỗ trợ chỉnh sửa dữ liệu'],
   ['data_grid_table_no_key_found_tooltip', 'Không tìm thấy khóa duy nhất. Không thể sửa đổi dữ liệu.'],
   ['data_grid_table_virtual_key_tooltip', 'Khóa ảo'],
   ['data_grid_table_key_column_tooltip', 'Cột khóa'],
diff --git a/webapp/packages/plugin-data-spreadsheet-new/src/locales/zh.ts b/webapp/packages/plugin-data-spreadsheet-new/src/locales/zh.ts
index 7d00200ddb4..b91108a097c 100644
--- a/webapp/packages/plugin-data-spreadsheet-new/src/locales/zh.ts
+++ b/webapp/packages/plugin-data-spreadsheet-new/src/locales/zh.ts
@@ -34,6 +34,7 @@ export default [
   ['data_grid_table_virtual_key_tooltip', '虚拟键'],
   ['data_grid_table_key_column_tooltip', '键列'],
   ['data_grid_table_readonly_connection_tooltip', '只读连接'],
+  ['data_grid_table_readonly_presentation_tooltip', '当前展示形式不支持数据编辑'],
   ['plugin_data_spreadsheet_new_settings_disable', '禁用表显示'],
   ['plugin_data_spreadsheet_new_settings_description_label', '显示列描述'],
   ['plugin_data_spreadsheet_new_settings_description_label_description', '描述将显示在表头的列名下方'],
diff --git a/webapp/packages/plugin-data-spreadsheet-new/tsconfig.json b/webapp/packages/plugin-data-spreadsheet-new/tsconfig.json
index 34a7b0ed668..84905581019 100644
--- a/webapp/packages/plugin-data-spreadsheet-new/tsconfig.json
+++ b/webapp/packages/plugin-data-spreadsheet-new/tsconfig.json
@@ -31,6 +31,9 @@
     {
       "path": "../core-cli"
     },
+    {
+      "path": "../core-connections"
+    },
     {
       "path": "../core-data-context"
     },
diff --git a/webapp/packages/plugin-data-viewer/src/ResultSet/ResultSetDataSource.ts b/webapp/packages/plugin-data-viewer/src/ResultSet/ResultSetDataSource.ts
index d78b52961c0..12c7fd30d68 100644
--- a/webapp/packages/plugin-data-viewer/src/ResultSet/ResultSetDataSource.ts
+++ b/webapp/packages/plugin-data-viewer/src/ResultSet/ResultSetDataSource.ts
@@ -43,9 +43,10 @@ export interface IRowIdentifierInfo {
   identifier: SqlRowIdentifier | null;
 }
 
-export abstract class ResultSetDataSource<TOptions extends IDatabaseDataOptions = IDatabaseDataOptions>
-  extends DatabaseDataSource<TOptions, IDatabaseResultSet>
-{
+export abstract class ResultSetDataSource<TOptions extends IDatabaseDataOptions = IDatabaseDataOptions> extends DatabaseDataSource<
+  TOptions,
+  IDatabaseResultSet
+> {
   executionContext: IConnectionExecutionContext | null;
   totalCountRequestTask: ITask<number> | null;
   private keepExecutionContextOnDispose: boolean;
diff --git a/webapp/yarn.lock b/webapp/yarn.lock
index b3d07b4a4f1..eb6a7b7f129 100644
--- a/webapp/yarn.lock
+++ b/webapp/yarn.lock
@@ -2957,6 +2957,7 @@ __metadata:
     "@cloudbeaver/core-blocks": "workspace:*"
     "@cloudbeaver/core-browser": "workspace:*"
     "@cloudbeaver/core-cli": "workspace:*"
+    "@cloudbeaver/core-connections": "workspace:*"
     "@cloudbeaver/core-data-context": "workspace:*"
     "@cloudbeaver/core-di": "workspace:*"
     "@cloudbeaver/core-dialogs": "workspace:*"