Can USB and Midi 5 pin be used simultaneously?

I would like to purchase a roli lightpad and use it as a sort of tactile modulation controller for my rack. The problem is that I am currently using the 5 pin input on the hermod to recieve MIDI data from ableton. Is it possible to continue using the 5 pin input for clock/keyboard MIDI and simultaneously set up the Roli block to provide modulation CVs via the USB input on the hermod? If so, what would be the best way to go about this? I understand that I could just set up the lightpad as a MIDI controller in ableton and send it’s data via the 5-pin, but for logistical reasons I would prefer to not go this route.