Beside this request of yours, I would like to add my concern:
The very unpleasant issue that I have is that I am at the border of 2 maps. And it looks like only one map can be open at a time.
I attach a copy screen to try making it more clear, instead of the empty square on noth, I would like to see my next map (the previously loaded one or something?
Maybe one solution is to create my own rmap file? Anyone know how hard it might be?