scroll to zoom in/out of display or set zoom %
scroll to zoom in to a display instead of clicking + or -, or select zoom percentage
The ability to zoom on a display by scrolling was added in the 2016 version. This can be done by holding Ctrl and scrolling the mouse wheel.
Chris, the request to zoom on event comparison displays is being tracked in a separate item:
Christian Nicolaisen commented
It is in the Event Frames Compare View I want to be able to zoom. The Ctrl+Wheel action on this screen zooms on the entire screen and not the curves.
Tracey Gray commented
Zoom in and out of a display using the wheel on your mouse