Importing Maps

Say you have a team of 4 people, and each person makes a section of the game. Is there a way to import each other section into one game?

with maps, you just put each map into your Data folder.  But I've found you have to go into the game first and create enough maps to cover the number (if you only have maps 1-6 in your game and someone gives you map 12, you have to create maps 7-12 in your game, then copy map 12 over the one you just created, and it'll pick up the correct version).

However, take care with tilesets used - if anyone has modded anything you'll need to redo the mod in each system you import it into.  Autotiles is another thing to watch for.  And if people have used events, they may use the same variables and switches for different things, and be especially careful with common events.

This has been my own experience with the few projects I've assisted on so far.  If anybody can find an easier way I'm all for hearing it (keeping in mind that since the projects I've worked on are not my own, the owners may not want to make the whole project available to everyone working on it - just those parts that affect them)