Hy i have a zoom G1 efect and today I bougt myself a exp pedal but i can't make it work. I Plug it in Exp on pedal and controlin on G1 then i sellect that i want to adjust the wolume for first save tha pach and nothing hapens. The same goes for other paches. Its kinda funny that ther is no power suply on the pedal . And why is there one in and one out port ? Ok it my first exp pedal so sry for stupid guestions.