ok, I changed that. Now only researcher can use this room.

I'm not able to implement your code.
The last line doesn't work and when I change it a little bit, so that I can start C-TH, than I get an error message, when the game tries to spawn the alien. (see the attached errormessage)
Now I'm going to upload my working, but not completed files, so that you can add them and maybe keep working on it (if that helps)
- implemented new files:
/diseases/, /objects/, / rooms/,
- changed files
/entities/humanoid.lua
/levels/example.level (just to proove the behaviour better)
this is working:
- aliens can use swing-doors and of course those green ones
- correct sound
- researcher is required and a lot of more
this is missing / wrong:
- correct animation when alien is transformed into a human (pls help me to find it - I'm sure I've seen that in the animation viewer)
- aliens occur as a normal patient too, instead of in cases of emergency only. If you want to, you can add the files into the next developer snapshoots (corsix-th-rXXXX-win32.zip).
The're based on r.1137!
I hope I could help a little bit ^^