Address Book set up in Hybrid Environment

Hi,

I work in education and we have a hybrid exchange system with exchange 2016 on-prem and O365 in the cloud.

I am looking to see if I can do the following:

turn off the GAL

set up a student AL

set up a "non-student" AL that basically has everyone in it that is not identified as a student

Allocate users so that they can see one or other or both of the AL's

Is this possible?

we sync between AD and 365 so could use a field in AD as a filter if necessary.