That seems like it’d be pretty easy. Basically just like giving someone a moderators role but with extra tier of hierarchy below normal moderator.
Seems like a nice idea TBH … I’m generally all in favour of leaning into lemmy’s ability to create sorta blogging spaces that naturally federate (and therefore are easy to aggregate).
Lemmy and ActivityPub seems to have (nearly) everything to recreate a new blogosphere, but with federation beyond its own border over ActivityPub, comments, voting, aggregation, sorting and search built right in.