Instead of using drag-and-drop function to move items within a structure, you can use the cut/paste feature. This is especially convenient, if you have a large structure and, for example, need to move some items from the top of the structure to the bottom or the other way around.
First add the desired items to the clipboard:
The cut issues are not removed from the structure until you paste them to a new location.
If the cut issue contains sub-issues, these sub-issues are cut with their parent.
After you have cut the issues, you can now paste them back to any place in the structure:
If the cut item contains sub-items, these sub-item are pasted with their parent.
After Paste the clipboard is cleared.
The Paste operation can be undone.