I know all about multisources I have a section on them in my tutorial too! My problem is how to make all the switches reset only after the multisource is activated by all the buttons. It would be even better if they'll reset 30 seconds or more after that.
My problem with the doors is that I want them to close slowly when all the buttons are pressed but it would be really annoying if they'll open up if they are blocked by a player!
Edit:
Why are the multiple multisources needed I want them in the end to target that one multisource that will start the flooding seaquance.