in the alignment. See <a href="../calculations/pca.html">Principal Component
Analysis</a>.</em> <br>
</li>
+ <li><strong>Extract Scores ... (optional)</strong><br>
+ <em>This option is only visible if Jalview detects one or more white-space separated values in the description line of the alignment sequences.<br>
+ When selected, these numbers are parsed into sequence associated annotation which can
+ then be used to sort the alignment via the Sort by→Score menu.</em> <br>
+ </li>
+
<li><strong>Autocalculate Consensus</strong><br>
<em>For large alignments it can be useful to deselect "Autocalculate
Consensus" when editing. This prevents the sometimes lengthy calculations