UX2 - Monitor guitar but not mic?

[JEMcG]

Hi,

I've had the UX2 for a while and really like it.

I've used it to stream and record guitar for some time, though always used a USB mic for commentary.

I wanted to upgrade so have bought an XLR mic that I wish to use through the UX2 interface. 

However, I can have my streaming software (OBS) record the UX2 so that it captures both the guitar and mic, so that's no issue.
The issue is that I cannot monitor just the guitar, while streaming/recording the mic audio.

 

Is there a way to just mintor guitar, while capturing the mic audio also?

Thanks