Cubase and Mercury 7 set up

Hi

Please can anyone help, Im trying to find out if this is feasible what im trying to do. Im trying to set up in Cubase a Mercury 7 pedal and am not being very successful. Either I hear no effect or get a feed back loop.

My Audio Interface is Scarlett Focusrite 2i2 so it just has the 2 inputs and 2 outputs. I was trying to go from the Scarletts outputs into the meris input and then the meris outputs into the scarlett inputs. Im using headphones but hearing no effect of the pedal. I also tried using sends from the VST channel and audio return track but that just creates a feedback loop.

This is my first pedal and im not even sure if I can do this with my setup but could anyone advise how to set this up, particularly the Cubase settings. Im using Cubase Elements 15.

Many thanks

Gary