Can be the GSC used as a switch between a guitar and a mouth-organ microphone?

The GSC enables to connect a mouth-organ microphone to an amp in switched mode: guitar or microphone (the guitar signal is automatically muted when the mouth-organ is in use and vice-versa).
To enable this connect mouth-organ microphone to one of the LOOP RETURN input and program a preset with this activated loop to which the microphone is connected.
The GSC enables to switch an amp (and eventual effects) to achieve required mouth-organ preset in a particular song.