+ <li><strong>Gap count - a.k.a. the Occupancy
+ Annotation Row</strong><br /> Another way to filter columns according to
+ the presence of gaps is to enable the <strong>Occupancy
+ Annotation</strong> row via Jalview's Preferences. This annotation row
+ shows a histogram of the number of aligned residues at each
+ column. The <a href="features/columnFilterByAnnotation.html">Select
+ By Annotation</a> dialog now also includes a percentage threshold
+ mode, to make it easy to filter alignments to show only those
+ columns with a particular fraction of aligned sequences.</li>