I don’t have these controllers, but I’d try this first:
Install the Nektar software, plug in the devices and have a look in Cubase on how these devices appear. (In Studio → Remote devices (Legacy))
Additionally, you may want to use MIDI Remote to map your Nektar P1 to the Cubase functions you choose.
Hi Fantom, thanks for the information.
The devices work independetly. Just need to know how to setup so both can work at the same time and not conflict. I assume it would the same for any two controllers/keyboards