Hello Snooze,
I've recently started up my own hubs not too long ago, so still fairly new to this. I'm running 2 ptokax w/DiXBoT hubs in parallel. Both having a similar theme, but slightly different audience. There is some membership overlap, though. Ultimately what I'd like to be able to do is have any releases or requests added in one of the hubs also be added in the other hub. Complete with announcement and addition to the release/request list just as if it was manually added in the secondary hub. I'm not sure if this is something that is possible, but hopefully there is a way to accomplish this.
Thanks!