Keeping audio inputs in Renoise in slave mode

I’m using Renoise for several midi send/return instruments - out to my external synths then audio routed back into those tracks for mixing.

I’m now recording some live instruments with it using Pro Tools synced up with ReWire. Unfortunately, Pro Tools is a total dom and will only run as a master. But, when I do this, all of my audio inputs in Renoise are disabled and I lose those synth returns as the I/O control is now shifted over to Pro Tools.

I know I can set up audio in for those instrument returns as tracks in pro tools, but I would then lose the ability to sidechain effects against Renoise instruments and other mixing functionality.

Can anyone suggest a workaround to keeping the audio ins within Renoise? Or better yet forcing Pro Tools to be a slave?