Subgroup Plugin for Permissions

Since GroupManager seems to be RIP, an extension for permissions that adds subgroup support would be appreciated.

PermissionsPlus already adds promote/demote commands - which my moderators are very grateful for - but my permissions configuration file is currently a mess of inherited groups, since my survival server is split into multiple towns, each with a unique text colour.

It started out with players > uthonian players > moderators > uthonian moderators > supermods > uthonian supermods. We now have a 3rd group. My configuration file is getting hard to navigate.

tl;dr
Create a plugin for TheYeti's Permissions that allows admins to turn this:

Code:

    Katono22:
        group: UthonianSuperModerators
    Mineral:
        group: SuperModerators

Into this:

Code:

    Katono22:
        group: SuperModerators
        subgroups: Uthonians
    Mineral:
        group: SuperModerators
        subgroups: Failhouse

And receive much love and adoration from the craftbukkit community.