diff --git a/SAS/ResourceAssignment/ResourceAssignmentEditor/lib/static/app/controllers/gridcontroller.js b/SAS/ResourceAssignment/ResourceAssignmentEditor/lib/static/app/controllers/gridcontroller.js
index 8d8bccda7d83e96b26ffdfd4e17ea73b47f39934..7f2833ef4ac53770a75e6080b52f1fd1ce20f961 100644
--- a/SAS/ResourceAssignment/ResourceAssignmentEditor/lib/static/app/controllers/gridcontroller.js
+++ b/SAS/ResourceAssignment/ResourceAssignmentEditor/lib/static/app/controllers/gridcontroller.js
@@ -346,6 +346,20 @@ gridControllerMod.directive('contextMenu', ['$document', '$window', function($do
             var ulElement = angular.element('<ul class="dropdown-menu" role="menu" style="left:' + event.clientX + 'px; top:' + event.clientY + 'px; z-index: 100000; display:block;"></ul>');
             contextmenuElement.append(ulElement);
 
+            var selected_tasks = dataService.selected_task_ids.map(function(t_id) { return dataService.taskDict[t_id]; });
+            var selected_cep4_tasks = selected_tasks.filter(function(t) {
+                var task_claims = dataService.resourceClaims.filter(function(rc) { return rc.task_id == t.id;});
+                return task_claims.length > 0;
+            });
+
+//                             var liElement = angular.element('<li><a href="#">Copy Task</a></li>');
+//                             ulElement.append(liElement);
+//                             liElement.on('click', function() {
+//                                 closeContextMenu();
+//                                 //TODO: remove link to dataService in this generic plugin
+//                                 dataService.copyTask(task);
+//                             });
+
             var liElement = angular.element('<li><a href="#">Select group</a></li>');
             ulElement.append(liElement);
             liElement.on('click', function() {
@@ -358,8 +372,7 @@ gridControllerMod.directive('contextMenu', ['$document', '$window', function($do
                 ulElement.append(liElement);
                 liElement.on('click', function() {
                     closeContextMenu();
-                    var tasks = dataService.selected_task_ids.map(function(t_id) { return dataService.taskDict[t_id]; });
-                    for(var t of tasks) {
+                    for(var t of selected_tasks) {
                         if(t) {
                             var url = dataService.config.inspection_plots_base_url + '/' + t.otdb_id;
                             $window.open(url, '_blank');
@@ -368,22 +381,27 @@ gridControllerMod.directive('contextMenu', ['$document', '$window', function($do
                 });
             }
 
-            var liContent = dataService.selected_task_ids.length == 1 ? '<li><a href="#">Show disk usage</a></li>' : '<li><a href="#" style="color:#aaaaaa">Show disk usage</a></li>'
+            var liContent = selected_cep4_tasks.length == selected_tasks.length ? '<li><a href="#">Show disk usage</a></li>' : '<li><a href="#" style="color:#aaaaaa">Show disk usage</a></li>'
             var liElement = angular.element(liContent);
             ulElement.append(liElement);
-            if(dataService.selected_task_ids.length == 1) {
+            if(selected_cep4_tasks.length == selected_tasks.length) {
                 liElement.on('click', function() {
                     closeContextMenu();
                     cleanupCtrl.showTaskDiskUsage(task);
                 });
             }
 
-            var liElement = angular.element('<li><a href="#">Delete data</a></li>');
+            var completed_selected_cep4_tasks = selected_cep4_tasks.filter(function(t) { return t.status == 'finished' || t.status == 'aborted'; });
+
+            var liContent = completed_selected_cep4_tasks.length == selected_tasks.length ? '<li><a href="#">Delete data</a></li>' : '<li><a href="#" style="color:#aaaaaa">Delete data</a></li>'
+            var liElement = angular.element(liContent);
             ulElement.append(liElement);
-            liElement.on('click', function() {
-                closeContextMenu();
-                cleanupCtrl.deleteSelectedTasksDataWithConfirmation();
-            });
+            if(completed_selected_cep4_tasks.length == selected_tasks.length) {
+                liElement.on('click', function() {
+                    closeContextMenu();
+                    cleanupCtrl.deleteSelectedTasksDataWithConfirmation();
+                });
+            }
 
             var closeContextMenu = function(cme) {
                 contextmenuElement.remove();
diff --git a/SAS/ResourceAssignment/ResourceAssignmentEditor/lib/static/app/gantt-plugins/angular-gantt-contextmenu-plugin.js b/SAS/ResourceAssignment/ResourceAssignmentEditor/lib/static/app/gantt-plugins/angular-gantt-contextmenu-plugin.js
index 464606c3221ae1016ace87cfcf80dcd2b4b05a2a..a984d94472082661301132df0530c0a56a762e70 100644
--- a/SAS/ResourceAssignment/ResourceAssignmentEditor/lib/static/app/gantt-plugins/angular-gantt-contextmenu-plugin.js
+++ b/SAS/ResourceAssignment/ResourceAssignmentEditor/lib/static/app/gantt-plugins/angular-gantt-contextmenu-plugin.js
@@ -56,6 +56,12 @@
                             var ulElement = angular.element('<ul  class="dropdown-menu" role="menu" style="left:' + event.clientX + 'px; top:' + event.clientY + 'px; z-index: 100000; display:block;"></ul>');
                             contextmenuElement.append(ulElement);
 
+                            var selected_tasks = dataService.selected_task_ids.map(function(t_id) { return dataService.taskDict[t_id]; });
+                            var selected_cep4_tasks = selected_tasks.filter(function(t) {
+                                var task_claims = dataService.resourceClaims.filter(function(rc) { return rc.task_id == t.id;});
+                                return task_claims.length > 0;
+                            });
+
 //                             var liElement = angular.element('<li><a href="#">Copy Task</a></li>');
 //                             ulElement.append(liElement);
 //                             liElement.on('click', function() {
@@ -76,8 +82,7 @@
                                 ulElement.append(liElement);
                                 liElement.on('click', function() {
                                     closeContextMenu();
-                                    var tasks = dataService.selected_task_ids.map(function(t_id) { return dataService.taskDict[t_id]; });
-                                    for(var t of tasks) {
+                                    for(var t of selected_tasks) {
                                         if(t) {
                                             var url = dataService.config.inspection_plots_base_url + '/' + t.otdb_id;
                                             $window.open(url, '_blank');
@@ -86,22 +91,27 @@
                                 });
                             }
 
-                            var liContent = dataService.selected_task_ids.length == 1 ? '<li><a href="#">Show disk usage</a></li>' : '<li><a href="#" style="color:#aaaaaa">Show disk usage</a></li>'
+                            var liContent = selected_cep4_tasks.length == selected_tasks.length ? '<li><a href="#">Show disk usage</a></li>' : '<li><a href="#" style="color:#aaaaaa">Show disk usage</a></li>'
                             var liElement = angular.element(liContent);
                             ulElement.append(liElement);
-                            if(dataService.selected_task_ids.length == 1) {
+                            if(selected_cep4_tasks.length == selected_tasks.length) {
                                 liElement.on('click', function() {
                                     closeContextMenu();
                                     cleanupCtrl.showTaskDiskUsage(task);
                                 });
                             }
 
-                            var liElement = angular.element('<li><a href="#">Delete data</a></li>');
+                            var completed_selected_cep4_tasks = selected_cep4_tasks.filter(function(t) { return t.status == 'finished' || t.status == 'aborted'; });
+
+                            var liContent = completed_selected_cep4_tasks.length == selected_tasks.length ? '<li><a href="#">Delete data</a></li>' : '<li><a href="#" style="color:#aaaaaa">Delete data</a></li>'
+                            var liElement = angular.element(liContent);
                             ulElement.append(liElement);
-                            liElement.on('click', function() {
-                                closeContextMenu();
-                                cleanupCtrl.deleteSelectedTasksDataWithConfirmation();
-                            });
+                            if(completed_selected_cep4_tasks.length == selected_tasks.length) {
+                                liElement.on('click', function() {
+                                    closeContextMenu();
+                                    cleanupCtrl.deleteSelectedTasksDataWithConfirmation();
+                                });
+                            }
 
                             var closeContextMenu = function() {
                                 contextmenuElement.remove();