How do you slave Reaper in Ableton Live?

what I want to do is do all my arranging in live(session view) and then record my audio into reaper.

You can't route audio from Live to a rewire slave, so either run Live as a rewire slave (midi only), record your session view to the arragement and export the audio or ditch Live and work with regions.

What I mean is I want to do the sequencing in live with plugins and then record my guitar tracks directly into reaper. so I end up with live playing all the vst tracks and reaper playing all my guitar tracks.

I remember seeing a topic where someone was using reaper as a slave in live. they were doing exactly what I want to try but I cannot find the thread. It may have been on another forum.