Used x mouse program to reassign buttons/ scroll to sdrc keyboard shortcuts.
ie..right click= tx middle button= tune scroll up = vfo up scroll down= vfo down middle button + scroll up= vfo up quick middle button + scroll down = vfo down quick
BUT..i have removed scroll from mouse and also middle button and used encoder with switch.. i have mounted encoder vertically with big vfo knob and mounted to mouse..this gives me proper vfo knob..
i will post a picture when not on phone..( as i can not post pics from phone.)