- Translate/Pan: drag on the graph canvas.
- Zoom in: double-click or swipe up with two fingers
- Zoom out: shift-double-click or swipe down with two fingers
- Re-scale and axis: drag on one of the X or Y axis numeric labels
- Select data point: click on a data point to select it
- Change data point: drag a selected data point to change it's value
- Delete data point: select data point and press the delete or backspace key
- Add data point: hold ALT/Option key down and click an empty area of the graph to add a data point