Can Access Virus KC's Split Mode Control An External Synth?

[Abstraktiv]

I'm using a Virus KC as my main keyboard.

What I'm trying to puzzle out is if I can use its split mode and have the lower half of the keyboard playing pads from the Virus, while having the upper half playing an external synth (in this case a Moog Slim Phatty) for leads?

As near as I can tell I only have the option to turn local on/off with regard to MIDI send, but I'm not sure if there's a way to work around this by assigning the split to different MIDI channels.

I hope this is doable. Playing multiple keyboards at once looks cool, but lugging them to rehearsal every week is a pain.