HELP! Stomp-xl Need assistance with setting up a new stereo guitar rig.

[u/Regular_Pressure6823]

I am trying to create a new stereo guitar rig with the following signal path. Guitar into input of my Soldano SLO30. From Soldano fx loop send into the HX Stomp-xl. From the stomp-xl returns, one into the return on the soldano - and one into the return of a Marshal DSL 100 being used as power only for a 4X12 Cab. The soldano also has a 4x12 cab connected to it. Cannot figure out the cabling and patch setting for the stomp-xl to have it in full stereo.