Move: RMB

Zoom: scroll or MMB + drag

Rotate: LMB

Reset: F

Based on work by the ⭢ Photonsters community and specifically by ⭢ Rob2084. You dudes rock!

This software is public domain, so do whatever you like with it. Source over at ⭢ Github. If you have issues, @me in the ⭢ Facebook group, name is Chris Graf.