Minor bug:

Open new sample file -- layout as below:

 

 

Ctrl+Drag "How to use this grid" item to the opposite pane.

In the Inbox, five items get selected. As you can see the drag and drop works, but here it also gets treated as a drag/select action (I can see that happening after the move).

 

Hope thats clear. If you need info about general settings, let me know