Can't move tabs in PHP Storm

Question

I'm trying to drag navigation tabs to new positions (and also to a different screen) in the editor in PHP Storm - I used to be able to do it but now it won't let me.

Anyone have any idea what's going on here? I'm on the EAP and have been switching between that and the stable release.

[edit] I've gone in to preferences/settings and checked tab-related settings, so far no joy.

Answer 1

If anyone still experiences this problem - the most common reason of being unable to change order of tabs by drag and drop is having one of Tab Order options enabled. Here is where it sits:

Answer 2

I had the same problem, and for me it was "Drag-n-drop with alt pressed only". Had to turn it off. You can search for it with just "ALT"