Activation regions

hi,
Well jimmy and I have just finished placing activation regions over our map and are getting a decent frame rate on pocket pc.. but the question even he seems stuck on..
How do you make stuff stop disappearing that's inside the activation region?
Well jimmy and I have just finished placing activation regions over our map and are getting a decent frame rate on pocket pc.. but the question even he seems stuck on..
How do you make stuff stop disappearing that's inside the activation region?