I choose this at the start of my game and i can't see any documentation saying this doesn't work if that option is chosen.

 

Does it work?

That option is referring to another real time editor which is not to be discussed.  FMRTE will still work even with that option checked.

yes as grey says it works the option relates to the SI IGE editor

Closing thread the answer has been given

if users have further comments to add to this thread just PM a mod and we can reopen it

cheers