For now, just random bits as they become available.

When you click the “Export Map” button in the editor you get a save dialog that pops up. Just choose a name and location there. Exported maps should be “play ready”. They have their time reset to 0 and all CRPLCores are reset to initial states (so 'once' blocks will execute again).

The “Save” and “Load” buttons in the editor overwrite the 'save.cw3' file in your map's project directory. This is what you should use while you are working on a map and want to save the map so you can come back to it later, or before you play the map for a bit.

* Map overlay editing tutorial (coming real soon now™)