diff --git a/package.json b/package.json
index c0f5e71..f7e3609 100644
--- a/package.json
+++ b/package.json
@@ -310,7 +310,7 @@
           "type": "number",
           "default": 500,
           "minimum": 500,
-          "markdownDescription": "Controls the delay in milliseconds after which a Memory Inspector is refrehsed automatically. Only applies when `#memory-inspector.periodicRefresh#` is enabled."
+          "markdownDescription": "Controls the delay in milliseconds after which a Memory Inspector is refreshed automatically. Only applies when `#memory-inspector.periodicRefresh#` is enabled."
         },
         "memory-inspector.groupings.bytesPerMAU": {
           "type": "number",
diff --git a/src/plugin/external-views.ts b/src/common/external-views.ts
similarity index 100%
rename from src/plugin/external-views.ts
rename to src/common/external-views.ts
diff --git a/src/common/messaging.ts b/src/common/messaging.ts
index 480557c..fb5954d 100644
--- a/src/common/messaging.ts
+++ b/src/common/messaging.ts
@@ -17,8 +17,8 @@
 import type { DebugProtocol } from '@vscode/debugprotocol';
 import type { NotificationType, RequestType } from 'vscode-messenger-common';
 import { URI } from 'vscode-uri';
-import { VariablesView } from '../plugin/external-views';
 import { DebugRequestTypes } from './debug-requests';
+import { VariablesView } from './external-views';
 import type { VariableRange, WrittenMemory } from './memory-range';
 import { MemoryViewSettings } from './webview-configuration';
 import { WebviewContext } from './webview-context';
diff --git a/src/common/webview-context.ts b/src/common/webview-context.ts
index 13f9076..ac142f2 100644
--- a/src/common/webview-context.ts
+++ b/src/common/webview-context.ts
@@ -16,6 +16,7 @@
 
 import { WebviewIdMessageParticipant } from 'vscode-messenger-common';
 import * as manifest from '../common/manifest';
+import { Endianness } from './manifest';
 import { VariableMetadata } from './memory-range';
 import { ReadMemoryArguments } from './messaging';
 
@@ -26,6 +27,8 @@ export interface WebviewContext {
     showVariablesColumn: boolean,
     showRadixPrefix: boolean,
     hasDebuggerDefaults?: boolean,
+    endianness: Endianness,
+    bytesPerMau: number,
     activeReadArguments: Required<ReadMemoryArguments>
 }
 
diff --git a/src/plugin/memory-storage.ts b/src/plugin/memory-storage.ts
index 8604036..a19036b 100644
--- a/src/plugin/memory-storage.ts
+++ b/src/plugin/memory-storage.ts
@@ -17,6 +17,7 @@
 import MemoryMap from 'nrf-intel-hex';
 import * as vscode from 'vscode';
 import { URI, Utils } from 'vscode-uri';
+import { isVariablesContext } from '../common/external-views';
 import { IntelHEX } from '../common/intel-hex';
 import * as manifest from '../common/manifest';
 import {
@@ -26,7 +27,6 @@ import {
 import { toHexStringWithRadixMarker } from '../common/memory-range';
 import { ApplyMemoryArguments, ApplyMemoryResult, MemoryOptions, StoreMemoryArguments } from '../common/messaging';
 import { isWebviewContext } from '../common/webview-context';
-import { isVariablesContext } from './external-views';
 import { MemoryProvider } from './memory-provider';
 
 export const StoreCommandType = `${manifest.PACKAGE_NAME}.store-file`;
diff --git a/src/plugin/memory-webview-main.ts b/src/plugin/memory-webview-main.ts
index 2b11b72..d13914a 100644
--- a/src/plugin/memory-webview-main.ts
+++ b/src/plugin/memory-webview-main.ts
@@ -17,6 +17,7 @@
 import * as vscode from 'vscode';
 import { Messenger } from 'vscode-messenger';
 import { WebviewIdMessageParticipant } from 'vscode-messenger-common';
+import { isVariablesContext } from '../common/external-views';
 import * as manifest from '../common/manifest';
 import { VariableRange } from '../common/memory-range';
 import {
@@ -46,7 +47,6 @@ import {
 import { MemoryDisplaySettings, MemoryDisplaySettingsContribution, MemoryViewSettings, ScrollingBehavior } from '../common/webview-configuration';
 import { getVisibleColumns, isWebviewVariableContext, WebviewContext } from '../common/webview-context';
 import { AddressPaddingOptions } from '../webview/utils/view-types';
-import { isVariablesContext } from './external-views';
 import { outputChannelLogger } from './logger';
 import { MemoryProvider } from './memory-provider';
 import { ApplyCommandType, StoreCommandType } from './memory-storage';
@@ -296,8 +296,8 @@ export class MemoryWebview implements vscode.CustomReadonlyEditorProvider {
         const sessionId = session?.id;
         return {
             sessionId,
-            canRead: !!this.sessionTracker.hasDebugCapabilitiy(session, 'supportsReadMemoryRequest'),
-            canWrite: !!this.sessionTracker.hasDebugCapabilitiy(session, 'supportsWriteMemoryRequest'),
+            canRead: !!this.sessionTracker.hasDebugCapability(session, 'supportsReadMemoryRequest'),
+            canWrite: !!this.sessionTracker.hasDebugCapability(session, 'supportsWriteMemoryRequest'),
             stopped: this.sessionTracker.isStopped(session)
         };
     }
diff --git a/src/plugin/session-tracker.ts b/src/plugin/session-tracker.ts
index 3ca95b4..d10529f 100644
--- a/src/plugin/session-tracker.ts
+++ b/src/plugin/session-tracker.ts
@@ -158,23 +158,23 @@ export class SessionTracker implements vscode.DebugAdapterTrackerFactory {
         return !!session && !!this.sessionInfo(session).stopped;
     }
 
-    hasDebugCapabilitiy(session = this.activeSession, capability: DebugCapability): boolean {
+    hasDebugCapability(session = this.activeSession, capability: DebugCapability): boolean {
         return !!session && !!this.sessionInfo(session).debugCapabilities?.[capability];
     }
 
     assertDebugCapability(session = this.assertActiveSession(), capability: DebugCapability, action: string = 'execute action'): vscode.DebugSession {
-        if (!this.hasDebugCapabilitiy(session, capability)) {
+        if (!this.hasDebugCapability(session, capability)) {
             throw new Error(`Cannot ${action}. Session does not have capability '${capability}'.`);
         }
         return session;
     }
 
-    hasClientCapabilitiy(session: vscode.DebugSession | undefined, capability: ClientCapability): boolean {
+    hasClientCapability(session: vscode.DebugSession | undefined, capability: ClientCapability): boolean {
         return !!session && !!this.sessionInfo(session).clientCapabilities?.[capability];
     }
 
     assertClientCapability(session = this.assertActiveSession(), capability: ClientCapability, action: string = 'execute action'): vscode.DebugSession {
-        if (!this.hasClientCapabilitiy(session, capability)) {
+        if (!this.hasClientCapability(session, capability)) {
             throw new Error(`Cannot ${action}. Client does not have capability '${capability}'.`);
         }
         return session;
diff --git a/src/webview/columns/data-column.tsx b/src/webview/columns/data-column.tsx
index c6a8b59..4a929c2 100644
--- a/src/webview/columns/data-column.tsx
+++ b/src/webview/columns/data-column.tsx
@@ -23,6 +23,7 @@ import { writeMemoryType } from '../../common/messaging';
 import type { MemorySizeOptions } from '../components/memory-table';
 import { decorationService } from '../decorations/decoration-service';
 import { Disposable, FullNodeAttributes } from '../utils/view-types';
+import { createGroupVscodeContext } from '../utils/vscode-contexts';
 import { characterWidthInContainer, elementInnerWidth } from '../utils/window';
 import { messenger } from '../view-messenger';
 import { ColumnContribution, TableRenderOptions } from './column-contribution-service';
@@ -87,6 +88,7 @@ export class EditableDataColumnRow extends React.Component<EditableDataColumnRow
             data-range={`${startAddress}-${endAddress}`}
             key={startAddress.toString(16)}
             onDoubleClick={this.setGroupEdit}
+            {...createGroupVscodeContext(startAddress, toOffset(startAddress, endAddress, this.props.options.bytesPerMau * 8))}
         >
             {maus}
         </span>;
diff --git a/src/webview/components/memory-widget.tsx b/src/webview/components/memory-widget.tsx
index 73a7218..1c46fbf 100644
--- a/src/webview/components/memory-widget.tsx
+++ b/src/webview/components/memory-widget.tsx
@@ -69,13 +69,16 @@ export class MemoryWidget extends React.Component<MemoryWidgetProps, MemoryWidge
 
     protected createVscodeContext(): VscodeContext {
         const visibleColumns = this.props.columns.filter(candidate => candidate.active).map(column => column.contribution.id);
+        const { messageParticipant, showRadixPrefix, endianness, bytesPerMau, activeReadArguments, hasDebuggerDefaults } = this.props;
         return createAppVscodeContext({
-            messageParticipant: this.props.messageParticipant,
-            showRadixPrefix: this.props.showRadixPrefix,
+            messageParticipant,
+            showRadixPrefix,
             showAsciiColumn: visibleColumns.includes(manifest.CONFIG_SHOW_ASCII_COLUMN),
             showVariablesColumn: visibleColumns.includes(manifest.CONFIG_SHOW_VARIABLES_COLUMN),
-            activeReadArguments: this.props.activeReadArguments,
-            hasDebuggerDefaults: this.props.hasDebuggerDefaults,
+            activeReadArguments,
+            hasDebuggerDefaults,
+            endianness,
+            bytesPerMau,
         });
 
     }
diff --git a/src/webview/utils/vscode-contexts.ts b/src/webview/utils/vscode-contexts.ts
index 6ddb510..9ea3206 100644
--- a/src/webview/utils/vscode-contexts.ts
+++ b/src/webview/utils/vscode-contexts.ts
@@ -28,7 +28,7 @@ export interface VscodeContext {
 export type WebviewSection = 'optionsWidget' | 'advancedOptionsOverlay' | 'memoryTable';
 
 export function createVscodeContext<C extends {}>(context: C): VscodeContext {
-    return { 'data-vscode-context': JSON.stringify(includeFlatKeys(context)) };
+    return { 'data-vscode-context': JSON.stringify(includeFlatKeys(context), replacerForBigInt) };
 }
 
 function includeFlatKeys(src: object): Record<string, unknown> {
@@ -64,8 +64,19 @@ export function createAppVscodeContext(context: Omit<WebviewContext, 'webviewSec
     return createVscodeContext({ ...context, webviewSection: 'app', preventDefaultContextMenuItems: true });
 }
 
+export function createGroupVscodeContext(startAddress: BigInt, length: number): VscodeContext {
+    return createVscodeContext({ memoryData: { group: { startAddress, length } } });
+}
+
 export function createVariableVscodeContext(variable: BigIntVariableRange): VscodeContext {
     const { name, type, value, isPointer } = variable;
     return createVscodeContext({ variable: { name, type, value, isPointer } });
 }
 
+function replacerForBigInt(_: string, value: unknown): unknown {
+    if (typeof value === 'bigint') {
+        return `0x${value.toString(16)}`;
+    }
+    return value;
+}
+