diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/app.component.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/app.component.ts
index 6b4f395..8add357 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/app.component.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/app.component.ts
@@ -39,8 +39,14 @@ export class AppComponent {
   }
 
   @HostListener('window:keydown.control.space', ['$event'])
-  protected handleCtrlSapce(event: KeyboardEvent) {
+  protected handleCtrlSpace(event: KeyboardEvent) {
     event.preventDefault();
     this.transferService.executeAll();
   }
+
+  @HostListener('window:keydown.control.l', ['$event'])
+  protected handleCtrlL(event: KeyboardEvent) {
+    event.preventDefault();
+    this.updateService.toggleEditability()
+  }
 }
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/nav-menu/nav-menu.component.html b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/nav-menu/nav-menu.component.html
index cd24c7f..41c0a96 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/nav-menu/nav-menu.component.html
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/components/nav-menu/nav-menu.component.html
@@ -30,19 +30,19 @@
       <!-- Right menu -->
       <div class="navbar-collapse justify-content-end me-5">
         <a class="navbar-brand" [routerLink]="['/']">User Manager Portal</a>
-        <button *ngIf="isLogedIn()" class="btn" (click)="this.updateService.toggleEditability()" [ngStyle]="{ 'visibility': updateService.isVisible ? 'visible' : 'hidden' }">
+        <button *ngIf="isLogedIn()" class="btn" (click)="this.updateService.toggleEditability()" [ngStyle]="{ 'visibility': updateService.isVisible ? 'visible' : 'hidden' }" matTooltip="strg + L" matTooltipPosition="below" [matTooltipClass]="tooltipClass" [matTooltipDisabled]="!updateService.isVisible">
           <mat-icon class="scale-pulse">{{ updateService.isEditable ? 'lock_open' : 'lock' }}</mat-icon>
         </button>
-        <button *ngIf="isLogedIn()" class="btn" (click)="updateService.executeAll()" [ngStyle]="{ 'visibility': updateService.isVisible ? 'visible' : 'hidden' }" matTooltip="strg + s" matTooltipPosition="below" [matTooltipClass]="tooltipClass" [matTooltipDisabled]="!updateService.isVisible">
+        <button *ngIf="isLogedIn()" class="btn" (click)="updateService.executeAll()" [ngStyle]="{ 'visibility': updateService.isVisible ? 'visible' : 'hidden' }" matTooltip="strg + S" matTooltipPosition="below" [matTooltipClass]="tooltipClass" [matTooltipDisabled]="!updateService.isVisible">
           <mat-icon class="scale-pulse" [matBadge]="updateActCount === 0 ? '' : updateActCount">save</mat-icon>
         </button>
-        <button *ngIf="isLogedIn()" class="btn" (click)="creationService.openDialog()" [ngStyle]="{ 'visibility': creationService.isVisible ? 'visible' : 'hidden' }" matTooltip="strg + c" matTooltipPosition="below" [matTooltipClass]="tooltipClass" [matTooltipDisabled]="!creationService.isVisible">
+        <button *ngIf="isLogedIn()" class="btn" (click)="creationService.openDialog()" [ngStyle]="{ 'visibility': creationService.isVisible ? 'visible' : 'hidden' }" matTooltip="strg + C" matTooltipPosition="below" [matTooltipClass]="tooltipClass" [matTooltipDisabled]="!creationService.isVisible">
           <mat-icon class="scale-pulse">add_to_photos</mat-icon>
         </button>
         <button *ngIf="isLogedIn()" class="btn" (click)="transferService.executeAll()" [ngStyle]="{ 'visibility': transferService.isVisible ? 'visible' : 'hidden' }" matTooltip="strg + ␣" matTooltipPosition="below" [matTooltipClass]="tooltipClass" [matTooltipDisabled]="!transferService.isVisible">
           <mat-icon class="move-left-right">swap_horiz</mat-icon>
         </button>
-        <button *ngIf="isLogedIn()" class="btn" (click)="refreshService.executeAll()" [ngStyle]="{ 'visibility': refreshService.isVisible ? 'visible' : 'hidden' }" matTooltip="strg + r" matTooltipPosition="below" [matTooltipClass]="tooltipClass" [matTooltipDisabled]="!refreshService.isVisible">
+        <button *ngIf="isLogedIn()" class="btn" (click)="refreshService.executeAll()" [ngStyle]="{ 'visibility': refreshService.isVisible ? 'visible' : 'hidden' }" matTooltip="strg + R" matTooltipPosition="below" [matTooltipClass]="tooltipClass" [matTooltipDisabled]="!refreshService.isVisible">
           <mat-icon class="turn-360">sync</mat-icon>
         </button>
         <button *ngIf="isLogedIn()" class="btn" (click)="showInfo()">