Using Reason as slave - Problem using synths in Reason

Hi All, I’m successfully using Reason as a slave as i want to use the PX7 synth rewired into Renoise.

All works fine but I keep having to go into Renoise track ‘MIDI’ tab and assign the output to the current reason synth preset

So When I change the preset on the Reason synth, I need to go back into Renoise MIDI tab and select the preset in the output section each time I try a new preset

Is there anyway to scroll through presets in the Reason synth without having to keep assigning the output in Renoise MIDI tab please ?