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Lan Dam authored
Ruler
Ctrl/Cmd + Click on a point in a plotting, a yellow ruler will show up with time on top.
Rulers will also show up on other plotting dialog at the corresponding position
On TPS plotting a yellow square box will show up to mark the corresponding data points on all the TPS channels. Ctr/cmd + Click on TPS plot will work the same.

Zooming
Zoom in
Shift + Click on a plot to mark the first zooming point, then Shift + click again to mark the second zooming point to zoom the area between two zooming points.
The zooming task will be performed in the area corresponding to zooming triggering dialog.
For TPS, zooming won't be performed but mark with 2 orange bars. Zooming can't be triggered from TPS dialog.

Zoom out
Shift + Click on the left side of a plot to zoom out one level, which means undoing one zoom in.