Change audio volume with mouse scroll on screen edge?

I have dual boot system with Windows 7 and Linux Mint. On Windows 7 i am using a program called Volume2 which allows you to change audio volume by placing the mouse pointer to the right screen edge (or other screen edge) and using the mouse scroll button to increase or decrease the volume. This also can be achieved with autohotkey script.
On linux mint i can change the volume with mouse scroll by placing the mouse pointer over the sound icon in the tray, but this is not that convenient as placing the mouse pointer to the right screen edge. I am wondering if something like this can be implemented in linux? Maybe with a scrip or a software that can do this?