diff --git a/src/lib/services/entities-map.service.ts b/src/lib/services/entities-map.service.ts
index 27790da..bee6608 100644
--- a/src/lib/services/entities-map.service.ts
+++ b/src/lib/services/entities-map.service.ts
@@ -1,6 +1,6 @@
 import { Injectable } from '@angular/core';
-import { BehaviorSubject, Observable, Subject } from 'rxjs';
-import { filter, startWith } from 'rxjs/operators';
+import { BehaviorSubject, Observable, Subject, switchMap } from 'rxjs';
+import { filter, map, startWith } from 'rxjs/operators';
 import { Entity } from '../listing';
 import { RequiredParam, shareLast, Validate } from '../utils';
 import { Id } from '../listing/models/trackable';
@@ -11,6 +11,7 @@ export abstract class EntitiesMapService<Interface, Class extends Entity<Interfa
 
     protected readonly _map = new Map<Id, BehaviorSubject<Class[]>>();
     readonly #entityChanged$ = new Subject<Class>();
+    readonly #entitiesChanged$ = new BehaviorSubject<boolean>(false);
     readonly #entityDeleted$ = new Subject<Class>();
 
     get empty(): boolean {
@@ -68,6 +69,10 @@ export abstract class EntitiesMapService<Interface, Class extends Entity<Interfa
 
         // Emit observables only after entities have been updated
 
+        if(changedEntities.length || deletedEntities.length) {
+            this.#entitiesChanged$.next(true);
+        }
+
         for (const entity of changedEntities) {
             this.#entityChanged$.next(entity);
         }
@@ -105,6 +110,15 @@ export abstract class EntitiesMapService<Interface, Class extends Entity<Interfa
         );
     }
 
+    @Validate()
+    watchChanged$(@RequiredParam() key: Id): Observable<boolean> {
+        return this.#entityChanged$.pipe(
+            startWith(this.get(key)),
+            map(entities => entities as Class[]),
+            map(entities => !!entities.length)
+        );
+    }
+
     watchDeleted$(entityId: Id): Observable<Class> {
         return this.#entityDeleted$.pipe(filter(entity => entity.id === entityId));
     }
diff --git a/src/lib/upload-file/upload-file.component.html b/src/lib/upload-file/upload-file.component.html
index aecc8a1..31a4ab2 100644
--- a/src/lib/upload-file/upload-file.component.html
+++ b/src/lib/upload-file/upload-file.component.html
@@ -2,7 +2,7 @@
     <div (click)="triggerAttachFile()" (fileDropped)="attachFile($event)" *ngIf="!file" class="upload-area" iqserDragDropFileUpload>
         <mat-icon svgIcon="iqser:upload"></mat-icon>
 
-        <div translate="import-redactions-dialog.upload-area-text"></div>
+        <div translate="upload-file.upload-area-text"></div>
     </div>
     <div *ngIf="file" class="file-area">
         <mat-icon svgIcon="iqser:document"></mat-icon>
diff --git a/src/lib/upload-file/upload-file.module.ts b/src/lib/upload-file/upload-file.module.ts
index e0b7961..96cdb92 100644
--- a/src/lib/upload-file/upload-file.module.ts
+++ b/src/lib/upload-file/upload-file.module.ts
@@ -3,12 +3,13 @@ import { UploadFileComponent } from './upload-file.component';
 import { DragDropFileUploadDirective } from './drag-drop-file-upload.directive';
 import { MatIconModule } from '@angular/material/icon';
 import { CommonModule } from '@angular/common';
+import { TranslateModule } from '@ngx-translate/core';
 
 const components = [UploadFileComponent, DragDropFileUploadDirective];
 
 @NgModule({
     declarations: [...components],
     exports: [...components],
-    imports: [MatIconModule, CommonModule],
+    imports: [MatIconModule, CommonModule, TranslateModule]
 })
 export class IqserUploadFileModule {}