Play along with TONEX Pedal

Hi all, I am recently bought Tonex pedal and I would like to set it up for play along - I have connected the pedal to my Windows PC via USB, installed Tonex editor and now.. what to do? Can somebody advise, how to be able to play to my headphones (connected to the pedal) to the music I turn on on my PC (YouTube, Spotify etc.). I tried to switch the OPERATION from LIVE to INTERFACE, but now I can hear the music, but not my guitar. I am still the beginner in this, so I do not have any other hardware or software that I can use.

Thank you very much for your help.

You need to use a DAW to get the processed sound back out thro the pedal interface mode. Interface mode the pedal does not output sound through the pedal outputs.