This is something that I have wanted for a long time, but before now I could only think of doing it through making an omni-palet (giant mapping thingy that has all the enviornments on it.)
That takes a lot of work though, and is inconvienent (admittedly though, not too hard.) So just now i went and looked up some details on the newest rpgmaker, the graphix looked... well the mapping graphix any way, they looked atrocious. So i was thinking, what if someone where to make it as if a map had multiple pallets. After all its just pixles right?
What I am thinking is that if someone could make rpmxp maps have multiple enviornment pallets by tabbing between them for the map, without changing the map's current paint job it would be perfect (think tab a,b,c,d and then you switch between them to grab your mtns or your grass, or style A house, or style b house.
I can understand how this would be hard, because by the looks of things, the way the pixles are called on is by the map being given a reference number that tells it which pallet to select, then each square on the map has a separate reference number that says which square of the pallet to check.
It sounds like the best soloution to this would be to combine it, to where each square would be given a longer reference number, say 3 values?
XX-XX-XX
The first value representing which pallet to go to, the second representing which square on the pallet to go to, and the third telling the square what it's reference number is.
The only major problem i can forsee would be compatiblility issues, it might have to rewrite the game engine instead of just script, and this might cause a bit of lag.
But you are the scriptors not me, and so I would assume you know better than I, and that i might indeed be totally wrong on how it works.
If it cant be done, i guess its no biggy, but I think it would make people's projects easier.