Mac OSX Patching (Best Practices)

Hello all,

I'm curious if anyone else has this issue.  My environment is mostly Windows but there are enough Macs to care about their status.  I'm only getting about 50% coverage for the assessment scan and patch tasks because these Macs are not all online all the time.  Is best practice to make this task run for 24 hours or is there some way to unhide the built in Mac tasks so they can be placed in a policy?

What is everyone else doing about this?

Thanks,

Paul