Overbridge main L/R and Fx Ableton

Hello Elektronauts ,

It might be impossible or I miss something, but I am trying to have the FXs with the OB. I noticed the MAIN R/L inputs at the OB control panel and I was thinking if it is possible to have them as an individual channel in Ableton. In that way it would be possible to isolate the Fxs at the Main Audio Routing.
I know that I can do this by using my soundcard, but due the different latency isn’t very helpful.

Screenshot 2021-09-23 200625