- <li>The <strong>"Structure→View all <em>N</em>
- structures
- </strong> option will open a new window containing all structures associated
- with the current selection, superposed according to the currently selected region of the alignment.<br/><em>This
- capability was added in Jalview 2.7</em>
- </li>
- <li><a name="viewreps"/>The <strong>"Structure→View all <em>N</em>
- representative structures
- </strong> option will open a new window containing exactly one structure per
- currently selected sequence.<br />
- <em>The View representative structures option was introduced in
- Jalview 2.8.1</em></li>
- </ul>
- <br>
-</p>
+ <li><strong>Selecting Structures</strong><br />You can select
+ the structures that you want to open and view by selecting them
+ with the mouse and keyboard.<br />By default, if structures were
+ discovered, then some will already be selected according to the
+ criteria shown in the drop-down menu. The default criteria is
+ 'highest resolution', simply choose another to pick structures in
+ a different way.<br />
+ <ul>
+ <li><strong>Viewing Cached Structures</strong><br />If
+ previously downloaded structures are available for your
+ sequences, the structure chooser will automatically offer them
+ via the <strong>Cached PDB Entries</strong> view. If you wish
+ to download new structures, select one of the PDBe selection
+ criteria from the drop-down menu.</li>
+ </ul></li>
+ <li><strong>To view selected structures, click the <strong>"View"</strong>
+ button.
+ </strong><br />
+ <ul>
+ <li>Additional structure data will be downloaded with the
+ EMBL-EBI's dbfetch service</li>
+ <li><a href="siftsmapping.html">SIFTS</a> records will also
+ be downloaded for mapping UniProt protein sequence data to PDB
+ coordinates.</li>
+ <li>A new structure viewer will open, or you will be
+ prompted to add structures to existing viewers (see <a
+ href="#afterviewbutton">below</a> for details).
+ </li>
+ </ul></li>
+ </ol>
+ <p>
+ <strong>Structure Viewers in the Jalview Desktop</strong><br/>
+ The
+ <a href="jmol.html">Jmol viewer</a> has been included since Jalview
+ 2.3. Jalview 2.8.2 included support for
+ <a href="chimera.html">Chimera</a>, provided it is installed and can
+ be launched by Jalview. The default viewer can be configured in the
+ <a href="preferences.html#structure">Structure tab</a> in the
+ <strong>Tools→Preferences</strong> dialog box.
+ <p>
+ Structure data imported into Jalview can also be processed to
+ display secondary structure and temperature factor annotation. See
+ the <a href="xsspannotation.html">Annotation from Structure</a> page
+ for more information.
+ </p>
+ <p>
+ <strong><a name="afterviewbutton">After pressing the
+ 'View' button in the Structure Chooser</a></strong><br /> The behaviour of
+ the 'View' button depends on the number of structures selected, and
+ whether structure views already exist for the selected structures or
+ aligned sequences.
+ </p>
+ <p>
+ If multiple structures are selected, then Jalview will always create
+ a new structure view. The selected structures will be imported into
+ this view, and superposed with the matched positions from the
+ aligned sequences.<br /> If a <strong>single</strong> PDB structure
+ is selected, one of the following will happen:
+ </p>