SQL Developer

(SQL Developer Version 1.5.1)

Hi,

I was wondering if there is any way to lock worksheet tabs so that when clicked and dragged, they don't create a new window?

Every time that happens while I'm working, it's always by accident - I will be clicking between tabs, and accidentally hold down for a very small amount of time while the mouse is moving. This causes SQL Developer to drag that tab into a new window of it's own, separating the work area between the two. It doesn't happen that often, but at least 2-3 times a day while I'm working quickly and moving between multiple things. I find this extremely annoying since as far as I can tell there's no way to move that tab back, so I always end up creating a new worksheet in the original window, copy-pasting into it and then exiting the old one.

So two questions:
1) Is there a way to lock the tabs, or make it so I have to hold down something (ctrl/alt/shift) in order to have it form a new window? I do not see anything in the options resembling this.
2) If not, is there an easy way to take a tab from one window and move it to a second window? I've tried everything I can think of, but no luck.

Thanks,

-tk