diff --git a/frontend/src/app/data.service.ts b/frontend/src/app/data.service.ts
index ea4e254..7b06e8b 100644
--- a/frontend/src/app/data.service.ts
+++ b/frontend/src/app/data.service.ts
@@ -249,12 +249,15 @@ export class DataService {
     const promise = new Promise(resolve=>{
       let first : boolean = true;
       let res : any[] = [];
-      console.log(dataJson);
+      //console.log(dataJson);
       this.http.post('http://localhost:8080/api/getChanges', dataJson)
       .subscribe((response:any)=>{
-       console.log(response);
+       //console.log(response);
         this.totalSize = response.totalSize;
         response.changes.forEach(resp=>{
+
+          //console.log(resp.resourceId+"  "+resp.approvalStatus)
+
           let tasks : any[] = [];
           if(resp.d1!=null){
             tasks.push(
@@ -331,10 +334,10 @@ export class DataService {
   }
 
   validateImplementerEdit(state):boolean{
-    if(state == 1){
+    if(state == 1 || state == 3 || state == 6){
       return true
     }else{
-      return false
+      return true
     }
   }
 
@@ -354,7 +357,7 @@ export class DataService {
   }
 
   validateApproval(approval):boolean{
-    if(approval!==""){
+    if(approval!=""){
       return true;
     }else{
       return false;
diff --git a/frontend/src/app/implementer-dialog/implementer-dialog.component.ts b/frontend/src/app/implementer-dialog/implementer-dialog.component.ts
index 4a6832b..f22a4f8 100644
--- a/frontend/src/app/implementer-dialog/implementer-dialog.component.ts
+++ b/frontend/src/app/implementer-dialog/implementer-dialog.component.ts
@@ -121,11 +121,13 @@ export class ImplementerDialogComponent implements OnInit {
             msg = 'Implementer Update failed';
             action ='close';
           }
-           this._snackBar.open(msg, action, {
+           this._snackBar.open(msg+" : "+res.error.message, action, {
              horizontalPosition: this.horizontalPosition,
              verticalPosition: this.verticalPosition,
              panelClass: ['mat-primary']
-           });
+           }).onAction().subscribe(() => {
+            console.log('The snackbar action was triggered!');
+          });
            this.dialogRef.close();
            //this.dialogRef.close();
            //counter++;
@@ -141,7 +143,7 @@ export class ImplementerDialogComponent implements OnInit {
             msg = 'Implementer Eintragung erfolgreich';
             action ='Schließen';
           }else{
-            msg = 'Implementer Update sucessful';
+            msg = 'Implementer Update successful';
             action ='close';
           }
            this._snackBar.open(msg, action, {
diff --git a/frontend/src/ntt-gantt/ntt-gantt.component.html b/frontend/src/ntt-gantt/ntt-gantt.component.html
index 34ca64a..29038bd 100644
--- a/frontend/src/ntt-gantt/ntt-gantt.component.html
+++ b/frontend/src/ntt-gantt/ntt-gantt.component.html
@@ -94,6 +94,7 @@
     (taskbarEditing)="taskbarEditing($event)"
     (taskbarEdited)="taskbarEdited($event)"
     (toolbarClick)="toolbarBtnClicked($event)"
+    (rowSelecting) = "rowSelecting($event)"
     (rowSelected) = "rowSelected($event)"
     (rowDeselected) = "rowDeselected($event)"
     (created)="created($event)"
diff --git a/frontend/src/ntt-gantt/ntt-gantt.component.ts b/frontend/src/ntt-gantt/ntt-gantt.component.ts
index 538f980..266ea39 100644
--- a/frontend/src/ntt-gantt/ntt-gantt.component.ts
+++ b/frontend/src/ntt-gantt/ntt-gantt.component.ts
@@ -527,6 +527,8 @@ public logg(args){
         this.data.push(task);
       }
     }
+    console.log(this.resources[this.resources.length-1]);
+    this.resources.push({resourceId: 'Timeline', resourceName: 'Planzeit Summen pro Woche'})
   }
 
   /**
@@ -598,12 +600,36 @@ public logg(args){
       this.projectEndDate = new Date(this.range.controls.end.value);
     }
   }
+  public rowSelecting(args: any){
+    console.log(args)
+    if(args.data.length){
+      // if((args.data.length == this.resources.length+1)){
+      //   console.log("all")
+      // }else{
+      //   if(args.data[args.data.length-1].TaskID == 'Timeline'){
+      //     args.cancel = true;
+      //   }
+      // }
+      if(args.data[args.data.length-1].TaskID == 'Timeline'){
+        let data = args.data;
+        data.pop();
+        args.data = data;
+      }
+
+    }else{
+      if(args.data.TaskID == 'Timeline'){
+        args.cancel = true;
+      }
+    }
+
+  }
 
   /**
    * The function rowSelected catches the corresponding syncfsuions event and checks if all selected resources (changes) have the same status, then it displays the corresponding buttons
    * @param args event arguments from the syncfusion gantt chart
    */
   public rowSelected(args: any) {
+
     this.approvalPending = false;
     this.selectedrowindex = this.ganttDefault.selectionModule.getSelectedRowIndexes();  // get the selected row indexes.
     this.selectedrecords = this.ganttDefault.selectionModule.getSelectedRecords();  // get the selected records.
@@ -700,7 +726,6 @@ public logg(args){
     this.selRecs = [];
     this.selectedrecords = [];
     this.selectedrowindex = [];
-
   }
 
   /**