This will hopefully demonstrate how I am using one volume/ expression pedal (Dunlop DVP-3) for both volume and or expression.
The DVP3 has the volume in & out connected to loop 1 of the G. The trs expression connection to the EXP connection of the G. Depending on the preset I can control either volume or expression or both simultaneously.
![](https://s2.save4k.ru/pic/rjVU8HOVPG0/maxresdefault.jpg)