To select a dotplot region activate the Select tool:

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     <img src="/wiki/download/attachments/4227422/Zooming to Selected Region.png"/>
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hold down the left mouse button and drag the mouse cursor over the dotplot.

When you select a region on a dotplot the corresponding region is also selected in other Sequence View areas (Sequence details viewSequence 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 dotplot view.

To zoom to the region selected click the Zoom in on the left.

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     <img src="/wiki/download/attachments/4227422/Zooming to Selected Region_1.png"/>
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