It’s a very good suggestion and I will add it in next update.
Thank you!
Here is another approach for your plan:
You should explore the reasons a site admin would like to do something like that. Then it will become easier to find solutions. Example of criterions:
1. Time-based, ex: “Users can create a gallery x days after registration.”
2. Category-based: Let the site admin create a list of categories in the dashboard for ex: artists, students, managers etc. When a user clicks to create a gallery, they will be presented with a drop-down list with the categories they must choose from. The category should be shown at the top of each gallery. This will discourage users to use categories in order to upload unrelated stuff.
3. Plugin-based, ex: bbpress (Only users with x posts can create a gallery) or Anspress (Only users with reputation 1000 can create a gallery) etc.
4.Role based, ex: “Only contributors and higher can create a gallery.”
5. Case-based. You add a checkbox in the userlist in the dashboard, where the site admin can check who can create.
6. Flag-based, ex: All users have permission to create galleries but they can be moderated or even blocked from creation if their galleries are flagged x times.
Once a user becomes a group admin, they can check (or not) a checkbox under “Enable Gallery” to allow (or not) members to upload. Alternatively, you can add a checkbox in the group memberlist for the group admin to check who can do what.
I think also that a gallery creator should be able to allow/disallow commenting for their galleries.
Regards