Hi, welcome to silkysteps.
The search page will help you find threads already made, enter keywords or phrases from the unit criteria.
These will help with unit 24 / CYP 3.2's environmental features
http://www.silkysteps.com/forum/showthread.php?t=12861
http://www.silkysteps.com/forum/showthread.php?t=15563
Best wishes