Feathers said: OH! That is very interesting! So they don't work in popped out sheets? Is there a reason why? I'd imagine it to be tricky to implement to a way to transfer completely custom elements from one browser window to another. Like, I know you can drag-n-drop files to a browser, text from your clipboard,and copy-paste images, but I can imagine there to be restrictions on doing anything more complex, as in this to some degree is a general internet browser limitations.