Drag Elements
You can drag any of the elements inside App Structure. Just select the element you want to move and start dragging it in the tree:
When the element which you are dragging cannot to be placed at specific locations, you will see a X - this means you can't drop it here as it is not allowed to move it here:
When the element can be placed at the selected location you will see a red arrow. You can drop the element there:
