I also noticed when switching to hue and sat, or liquify, a white box appears where the panel originally was stationed, blocking the view of the canvas. Would be nice if it maintained its transparency.
It would be interesting to map the layers interface too, I didn't find a way to do this.
Would be nice to be able to map the other 2 panels as well.
This feature rocks overall, I can't believe I slept on it for so long! I have the color wheel and various settings mapped to it.
![Smile :)](./images/smilies/icon_e_smile.gif)
All the best,
Armor