There are no moderator filters. You can have moderators above other moderators with the below structure, but this doesn't limit the content they can edit. What you're wanting is only doable for profile edits, but other content won't be restricted. Example as follows.
- Registered
- - Group 1
- - - Group 1 Moderator
- - Group 2
- - - Group 2 Moderator
With the above Group 2 Moderator can moderate Group 2 and Registered, but not Group 1 Moderator or Group 1. Again this only applies to profile edit though.