FEM: Add index over frames visualizations

src/Mod/Fem/Gui/TaskPostBoxes.cpp

@@ -408,6 +408,21 @@ void TaskDlgPost::modifyStandardButtons(QDialogButtonBox* box)
     }
 }
 
+void TaskDlgPost::processCollapsedWidgets() {
+
+    for (auto& widget : Content) {
+        if(auto task_box = dynamic_cast<Gui::TaskView::TaskBox*>(widget)) {
+            // get the task widget and check if it is a post widget
+            auto widget = task_box->groupLayout()->itemAt(0)->widget();
+            if(auto post_widget = dynamic_cast<TaskPostWidget*>(widget)) {
+                if(post_widget->initiallyCollapsed()) {
+                    post_widget->setGeometry(QRect(QPoint(0,0), post_widget->sizeHint()));
+                    task_box->hideGroupBox();
+                }
+            }
+        }
+    }
+}
 
 // ***************************************************************************
 // box to set the coloring
@@ -571,6 +586,10 @@ void TaskPostFrames::applyPythonCode()
     // we apply the views widgets python code
 }
 
+bool TaskPostFrames::initiallyCollapsed() {
+
+    return (ui->FrameTable->rowCount() == 0);
+}
 
 // ***************************************************************************
 // in the following, the different filters sorted alphabetically