Default interaction model
Zoom: click-drag
Pan: shift-click-drag
Restore zoom level: double-click
No interaction model
Click and drag all you like, it won't do anything!
Custom interaction model
Zoom in: double-click, scroll wheel
Zoom out: ctrl-double-click, scroll wheel
Standard Zoom: shift-click-drag Standard Pan: click-drag
Restore zoom level: press button
Fun model!
Keep the mouse button pressed, and hover over all points to mark them.