Its under the Limitations tab. We just updated to 9.73 and I can see it. Created a new policy, checked the "Make the policy available in Self Service" box, went to Scope, clicked on Limitations and I can select from "LDAP/Local Users" and "LDAP User Groups", in addition to "Network Segments" and "iBeacons".

You still need to specify a set of target Macs (or just all of them) from the main Scope section for it to show up though.

yeah I lost my marbles for a min. I got this back now.

Don't you have to scope it to All Computers or All Users first before narrowing it down with an AD Group under limitations?

@Witt Yes, that's why I mentioned:

You still need to specify a set of target Macs (or just all of them) from the main Scope section for it to show up though.

above in my post.