Custom scale in display
When you toggle between Solid Color and Point Coordinates, it resets to the original scale and looses the previously set custom scale.
Also, the only way to access the 'set custom scale' is to Edit the color map and go to the 'set custom scale' button from there. It would be better if it was available on the Display panel.
Also, its unclear what the 'use separate color map' button does. Sometimes it switches to a different colormap, sometimes it toggles between two different color maps (both different from my custom map).