There is no modification required. The hub works with 4 Universes because it has 4 pairs of inputs. You can better think of Universe 1 thu 4 as pair 1 thru 4. If the hub is connected to an Etherdongle or conductor that is sending out Universes 5 thru 8, then the hub is working with those universes and pair 1 would be Universe 5, pair 2 would be Universe 6, etc .......