Minor post, but while experimenting with OxygenCoef, OxygenRate, and the new CE functionality, I discovered that the "10 raider limit before you must build a Support Station" is entirely tied to the OxygenCoef of the Support Station and not a phantom 10 as I had hoped.
This script - which also serves as an example of the new Cafeteria functionality available in Beta 5 and above - is supposed to - and mostly does with some faff on the side (CMP commands are not working as intended to skip code, though the script works regardless thanks to SetProperty not doing anything if said property does not exist - just take a look at the patch log) - reduce the OxygenCoef of raiders, the Air Filter if it exists, and the Support Station by a factor of 10, and increase the OxygenRate of levels by a factor of 10. It also goes through RRULevels 1 through to 8 for the Custom Level Cafeteria Framework's sake.