Docking panels that are in standalone windows

OK, I may be super silly or missing something simple, but how do you get a panel to dock once its popped out in a stand alone window?

Hello Troy,

So assuming your UI isn’t locked, dragging it back to it’s spot should get it back in place. Now, it might try to put it as a tab of a current panel, so you might need to move it around a little until it falls in right. I am including a screenshot of what it will look like when it’s placing right.
Screenshot 2015-07-10 15.36.52.png

boy do i feel stupid.
the HUGE green lock escaped my notice somehow.
#facepalm

picard.jpg

No worries, we all have our moments.