Hey, glad you like the editor!
Yes, I do plan to add extra gimmicks... but, I have yet to make a final decision on it. I won't go too crazy and add 50 different ideas though.
Those two levels - did you make the originals, or were they someone else's? Sorry, I'm not too informed on all the ktool levels.
About the issues you mentioned, yeah, it seems doors with pure outline or locks weren't immune to brown at all due to a bug, and doors with gold locks were immune to master keys even after being cursed. I'm not sure if there was anything else there. Thanks for letting me know!