Multiple galleries from one database and one CPG install

[AndrewC]

Correct me if my terminology is wrong but just so it's clear what I talking about:

I have images stored in a database
These images are displayed in albums
The albums collected into categories
The categories grouped in a gallery

I know I can have multiple installs of CPG which access different tables in a single database - I already do this.
I want to have multiple galleries reading from a single database and would like to do it from a single CPG install. All galleries have the same look.
The reason I want to do this is to "group" images into separate galleries and then only have to update one install / theme when necessary.
The reason for different galleries/groups is that with a single gallery it can become very vertical in its organization and I want to have some lateral structure.

If this is possible please point me in the right direction.

Thanks,

Andrew

[Joachim Müller]

That's why the categories can have sub-categories. In fact they can be nested infinitely.