Can a poison flag be added with adjustable levels to create zones that poison anyone that enters?  

Also is it possable to set temperature levels and adjust hunger and thurst depletion rates within the domes?

I can't help with your exact request - but I was thinking maybe you could set hunger and thirst as a constant rate . 

For example, I have a zone that provides 100% comfort upon entry. You could reverse this logic and set say 5% starvation or 80% dehydration?

It's not exactly what your looking for but maybe you can get creative to make it work?

I'm not sure about the flag portion though. 

Figured I'd throw it out there. 

Thanks i might have to look into this for the time being/