On my last build for a friend, I had 3 "admin buttons" up top.. 1 for enter, one for exit, one for pause. Now, i remember i had one of those set to something like shift+5 (coin), with the setting to only apply shift if another button is hit, and applying a coin if i only push that one button..Also setting gameex volume keys to shift up and shift down.. So if i wanted to insert a credit, i would hit the coin button, and if i wanted to change the volume, id hold the coin button and push up or down on the joysticks. That worked, but now i have a new build, with a spinner and such as well. So I ask, how do you conveniently control your mame volume while playing games and using front ends? I currently use the spinner to quickly scroll up and down menus, does anyone use it for volume? and how would u use it for volume during a spinner game. If anyone feels like throwing out ideas, heres my setup of buttons i have to use. I have 4 admin buttons up top. Ideally one is enter, one is exit, one is pause, and one is coin. With a spinner and trakball as well. How would YOU set up a volume control.