I have a mod that uses a 'fake' enemy force to help keep turrets always 'firing' at a foe so it looks like a searchlight is working.

Unfortunately, the "replace enemy" button destroys the entities I'm keeping in my force, and even if it didn't cause a crash, it'd still be annoying as a mod developer to have to regenerate all my hidden entities, and annoying as a player to have a bunch of enemies show up inside my base.

https://mods.factorio.com/mod/SearchlightAssault/discussion/6435d3a16677b1323869436d

Is there a way we can mark specific forces or otherwise forbid the Replace Enemy button from affecting particular units?

Thank you.

Ya. I can take a look what I can do to fix that. I'm on vacation at the moment tho. I won't able to fix it till early May.

Cool, thank you! Enjoy your vacation

Consider this request closed, the new update makes this obsolete :)

(There's a small syntax error causing a crash, I sent a pull request on github with a fix)

Thank you!