Tapping Into Usergroup Permissions

[Dax IX]

I'm building a site now that I need to be able to tap into Usergroup Permissions.

Basically, I want to be able to provide multiple logins for certain paid members, and I want the main account to be able to give permissions to a mod that I'm writing to sub-accounts in the main account's Usercp.

Any ideas on where to start for this?

Thanks!

[Dax IX]

Maybe I should clarify...

Is it possible to tap into the usergroups permissions, or would I need to set up a whole new set of permissions for this? Secondary permissions?