Zwift RunPod for cadence of gym bike

Can you somehow allow the Zwift RunPod to work as a cadence meter when you’re on the bike?
I have a solution where pulse is converted to power on a simple bike in my gym - that gives me both pulse and power in Zwift and works great.
But if you could make the RunPod transmit cadence from the circular movements of the pedals I could add cadence as well. It’s not an option to mount any power or cadence meters on the gym bikes - it has to be an easy setup once a bike is free in the gym.
Is that possible or can you make it possible?