With the default ATC I could bring up and close the display window with just a keypress.I would like to do the same in RC. Since the advdisp window is not transparent it sometimes is in the way.Also is it possible to make the advdisp window pop up when it has been updated?

With your Advdisplay placed where you want it, right click the window and ensure Multiline only is checked. Go into your fsupic and under Hot Keys, you'll find Toggle AdvDisplay options.

i use ` to toggle advdisp on and off. do what doug says, and pick an unmapped key, or use `jd