Ultranet is inherently output-only, whether on the console or the stage boxes. You can pick a different set of source signals for the stage-box ports, within the limitations of the block-of-8 routing rules. There is still only one set of 16 (two blocks of 8) Ultranet sources with full flexibility, which default to being mirrored across all Ultranet outputs, but you can change the stagebox ones to mirror two other blocks of 8 outputs (perhaps the physical XLR outputs) if required. You do not get a second set of fully-flexible Ultranet sources.