How do you make 2 screen game

[AVirgoEVAUnitPilot]

I wouldn't know why someone would choose such a design for a PC game, where screens tend to be wider than high, but those should be doable with GM (don't ask me how, though!).
You basically need two seperate views or surfaces, rendering the map to one, the overworld on the over.

Thanks also one last thing is there Is there any way to make controll an screen setting seprated like what they did to rockman 8 fc. Or even make tool setings like in emulators for example. [img][/img]