Is there a way to control the allocation of seats/enrollments by branch or group within 1 session?

We are looking to manage the percentage of enrollments available in an ILT course (or session) based on region/location and then on cost center.  We currently have our branches set up by cost center.  If we create an ILT course with 1 session that has 100 seats, can we reserve a certain number of seats for particular users to self enroll into?  And once those seats in the session are filled, the user in that particular region & cost center would be added to a waitlist?  i.e  reserve 10 seats for EMEA CPG. 7 seats for APAC finance, and 3 seats for Americas HR etc?

If not - looking for ideas on how to manage this without having to enroll users from the admin side.  We want them to self-enroll on a first come first serve basis.