Zooming to Selected Region
To select a dot plot region, activate the Select tool:
Hold down the left mouse button and drag the mouse cursor over the dot plot.
When you select a region on a dot plot, the corresponding region is also selected in other Sequence View areas (Sequence details view, Sequence zoom view, etc.).
The opposite is true as well: if you select a region in a Sequence View area, the corresponding region is also selected in the dot plot view.
To zoom to the selected region, click the Zoom in on the left.