Hi Folks.
This should not be considered as tutorial, just an example of my workflow. Instead of going back and forth from BIAB to DAW when laying out arrangement, I do a rough sketch in BIAB to hear how particular set of RT's sound together with NI or other synths.

There probably is a way to program keyswitches for NI... I didn't look closely yet, as I am still finalizing everything in DAW, but for rough sketching this works for me. If you have any questions, please ask here, as I do not monitor youtube comments.