Map editor:
alt+m = toggle editor mode
-m = place object
+o = place object
p = place enemy
shift+p = place waypoint
-delete = delete most recently made object
-shift+delete = delete most recently made player
+delete = delete closest object
+shift+delete = delete closest player
up/down = change size of next object
control+up/down = change tilt of next object
left/right = change rotation of next object