After a lot of time searching the forum, I’ve not been able to find an answer for this…
I’m using 4R3. I have Customize UI enabled, but CRTL-clicking and dragging isn’t moving my buttons. Anyone have any idea why?
Thanks in advance!! 
It’s Ctrl+Alt and drag
Ah!! Thank you!
I wish they’d update their online docs…
The change was explained in the documentation that you downloaded with ZBrush 4