HMVC and Admin

[eluser]sunnyd[/eluser]
I am currently using HMVC and Phil Sturgeon's method of creating admin panel for the backend of my websites.

The problem is that sometimes the admin controller in each module can get too large and managing code much less tracking it down can be difficult.

For example, the current admin controller, let's admin_photos is used to manage photos, photo categories, tags, with each probably their own CRUD functions. Is there a way I can break this into 3 different admin controllers while still being under the Photos module.

Essentially, I am looking for something like this:

Photos
------- admin_photos.php
------- admin_tags.php
------- admin_categories.php

I would like to be able to access the backend using http://sitename.com/admin/photos/tags etc..

Is that possible?

Thanks