Modifying Libary

Hi All.
I have a school that has some moving lights and if the unit is run above 80% the fans are crazy noisy. Is there a way to modify the libary to lock it to 80%. I know if Could use an inhibitive master but if the students forget to put it up then the fixture will run at 100% then the fan will sound like a helicopter. Is there a way to make the inhibitive master on when the software loads? Also force ignore black outs and global releases?