<pre><em>Feature label</em>	<em>Feature Colour</em></pre> </strong>A feature
type has a text label, and a colour (specified as a red,green,blue 24
bit triplet either in hexadecimal (eg. 00ff00) or as comma separated
-numbers (ranging from 0 to 255)). The text label may contain simple HTML
-document body tags if enclosed by "<html></html>"
-and will be rendered as formatted tooltips in the Jalview Application
-(the Jalview applet is not capable of rendering HTML tooltips, so all
-formatting tags will be removed.</p>
+numbers (ranging from 0 to 255)).</p>
<p>The remaining lines in the file are the sequence annotation
definitions, where the now defined features are attached to regions on
particular sequences, optionally with some descriptive text (displayed
the sequenceId field will be used in preference to the sequenceIndex
field.
</p>
+<p>The description may contain simple HTML
+document body tags if enclosed by "<html></html>" and
+these will be rendered as formatted tooltips in the Jalview Application
+(the Jalview applet is not capable of rendering HTML tooltips, so all
+formatting tags will be removed).<br>
+<em>Attaching Links to Sequence Features</em>
+<br>Any anchor tags in an html formatted description line will be translated
+into URL links. A link symbol will be displayed adjacent to any feature which
+includes links, and these are made available from the
+<a href="../menus/popupMenu.html#sqid.popup">links submenu</a> of the
+popup menu which is obtained by right-clicking when a link symbol is
+displayed in the tooltip.<br>
+<em>Non-positional features</em><br>
+Specify the <em>start</em> and <em>end</em> for a feature to be <strong>0</strong> in order to attach it to the whole sequence.
+Non-positional features are shown in a tooltip when the mouse hovers over the seuqence ID panel, and any embedded links can be accessed from the popup menu.
+</p>
+
<p>Feature annotations can be collected into named groups by
prefixing definitions with lines of the form:<strong><pre>startgroup	groupname</pre></strong>..
and subsequently post-fixing the group with:<strong><pre>endgroup	groupname</pre></strong>Feature
<li>Each top level parenthesis will yield a URL containing the text matched within that parenthesis.
</li>
<li>Regions matching sub-parentheseses within a top-level parenthesis will be concatenated to form the text inserted into the URL for the top-level parenthesis.</li>
- <em>Please Note: the regular expressions supported by Jalview are those provided by the <a href="www.javaregex.com">Stevesoft javaregex package</a>.
+ <em>Please Note:
+ <ul><li>The regular expressions supported by Jalview are those provided by the <a href="www.javaregex.com">Stevesoft javaregex package</a>.
+ </li><li>Some characters must be escaped when specifying them as a match within a regular expression.</li></ul>
<br>Many Thanks to Bernd Brand of the Free University of Amsterdam for testing this new regular-expression expansion feature!
</em>
+ <em>
</ul>
</p>
<p><em>Default Browser (Unix)</em><br>