+ <a name="backups"><strong>The "Backups" Preferences Tab</strong></a>
+ </p>
+ <p>Since Jalview 2.11.0, overwriting an existing file when saving
+ or exporting data will by default trigger a backup file to be
+ created. Several options are provided to control how backup files
+ are named, and how many old versions will be kept.</p>
+ <p>
+ <em>Schemes</em> - select from three default schemes <em>Single Backup</em>, <em>Keep All Versions</em>, and <em>Rolled Backup Files</em>, or choose <em>Custom</em> to enable a previously defined custom scheme.
+ </p><p>
+ <em>Custom</em> - Check this box to adjust the parameters of the currently selected scheme. Once <em>OK</em> is selected these parameters will be saved as the <em>Custom</em> scheme in your user preferences. To revert changes hit <em>Cancel</em>.
+ </p>
+ <p><em>Scheme Examples</em> - shows how backup files will appear according to the currently selected scheme and parameters.
+ </p>
+ <p><em>Deleting Old Backup Files</em> - these settings control how many backups are kept.</p>
+ <p><em>Backup filename strategy</em> - specify the naming convention for numbered backups and how they are ordered.</p>
+ <p>