I am now testing custom object spawn for a future tool that will be called CCREE, an editor for Captain Commando Readjusted.
Like the other tools, the idea is to at least have a level editor, a seed randomizer and a patch manager.
The original game spawns every object in a way that is not ideal for a level editor or a seed randomizer, because of the lack of freedom to spawn them where you want, so a new code to handle object spawning had to be written, a lot more flexible to spawn any object, even robots that in the original game spawns with an enemy instead of just the robot.
Having a flexible way to spawn objects is necessary for an editor.