Yeah, my main reason for wanting mouse buttons is in case I need to use Windows. I could have a set of buttons to the left and right of the trackball like sc1103 suggested, but that seems a little excessive to have 2 sets of the same buttons. I could try putting them underneath, but then I'd have to move the trackball forwards, which would not only mess with my aesthetics but also put players at risk of hitting the screen while playing Golden Tee Golf. I really hope that I can find a clear solution. If I went with sc1103's duplicate buttons idea, maybe I could ditch the 3rd mouse button to keep things from getting crowded, since it doesn't seem to get used much at all. I'm always open to more suggestions!