-are displayed). <strong><em>You can change the colour used
-for a feature in the associated alignment by clicking on its colour box.</em></strong></p>
-<p><strong><em>Feature settings pop-up menu</em></strong><br>
+are displayed). <strong><em>You can change the colour or
+shading style used for a feature in the associated alignment by clicking
+on its colour box.</em></strong></p>
+ <p>
+ <strong><em>Selecting alignment columns by feature</em></strong><br>
+ <strong>Double-click</strong> a feature to add all the columns where
+ that feature is found to the current column selection. <strong>Shift+Double-click</strong>
+ will add all the columns where that feature is <strong>not</strong>
+ found. You can also find these options in the feature's pop-up menu
+ (see below). <br />
+ <em>Select columns by feature was added in Jalview 2.8.1</em>
+ </p>
+ <p><strong><em>Feature settings pop-up menu</em></strong><br>