Allow only horizontal drag and drop operations.

Allow only vertical drag and drop operations.

Allow both horizontal and vertical drag and drop operations.

Allow activity duration editing using drag and drop.

Create your own drag and drop operations.

Click on the timeline to zoom in.

Dragging from point A to B on the timeline will trigger a zoom on selected period.

Hold the control key and use your mouse wheel to zoom in and out.

Design interactions to zoom anywhere you want.