I currently use 2 multi-state buttons (one for Manual/Historical/Realtime modes and the other for Zoom, Pan, Mark and X-Trace modes). Each of these' control and indicator values are bound bidirectionally to client tags (I do this so that I can remember and restore the same window the next time the window is opened). The first client tag is bidirectionally bound to the charts chart mode property. Since the second chart mode property is not exposed I have to run a script on property change of the component that gets the chart and sets the mode to the multistate button components control value (not working if I set it to the second client tag)...

Agreed. Native mouse scroll would be useful for zoom, and middle mouse button for pan would be ideal.