Main toolbar > Open Track View > Track View status bar > Zoom
Graph Editors menu > Track View > Open Track View > Track View status bar > Zoom
Zoom is a three-button flyout. You can zoom your view of time horizontally, vertically, and in both directions simultaneously. You drag right to increase magnification and drag left to decrease magnification.
Procedure
To zoom your view of time horizontally:
On the Track View status bar, click Zoom.
Click and drag to the right in the Track View Edit window.
Your view of time expands horizontally in the edit window.
Interface
Zoom: Zooms your view of time and values simultaneously. Zoom remains active until you right-click to cancel or click another option. The Zoom button is green while active.
Drag down to zoom out and see more time and a larger range of values. Drag up to zoom in and see less time and a smaller range of values.
Zoom Vertically: In Function Curves mode, dynamically zooms the contents of the Edit window vertically. Drag up to increase magnification. Drag down to decrease magnification.
Zoom Horizontally: Dynamically zooms the contents of the Edit window horizontally.