abd6ac195970e8c6893bf204d9ecb940b5a0fa49
brianlee
  Mon Jun 20 13:43:53 2022 -0700
Improving #RIGHT_CLICK_NAV section of hgTracksHelp.html, no RM

diff --git src/hg/htdocs/goldenPath/help/hgTracksHelp.html src/hg/htdocs/goldenPath/help/hgTracksHelp.html
index ad5f46c..53ed993 100755
--- src/hg/htdocs/goldenPath/help/hgTracksHelp.html
+++ src/hg/htdocs/goldenPath/help/hgTracksHelp.html
@@ -689,62 +689,69 @@
 <h3>Enabling item and exon navigation</h3>
 <p>
 When the <em>Next/previous item navigation</em> configuration option is toggled on, on the Track 
 Configuration page,  gray double-headed arrows display in the Genome Browser tracks image on both 
 sides of the track labels of gene, mRNA and EST tracks (or any standard tracks based on BED, PSL or 
 genePred format). Clicking on the gray arrows shifts the image window toward that end of the 
 chromosome so that the next item in the track is displayed. Similarly, the <em>Next/previous exon 
 navigation</em> configuration option displays white double-headed arrows on the end of any item that
 extends off the edge of the current image. Clicking on one of the white arrows shifts the image 
 window to the next exon in the indicated direction, unless the image window interrupts an exon, in 
 which case the window shifts to the edge of the current exon. If the image window happens to be 
 within a 5' or 3' UTR, then clicking the arrows shifts the image window towards the start or end of 
 the next coding region, not the end of the exon.</p>
 
 <a name="RIGHT_CLICK_NAV"></a>
-<h3>Enabling the right-click navigation feature</h3>
+<h3>Using the right-click navigation feature</h3>
 <p>
 Several of the common display and navigation operations offered on the Genome Browser tracks page 
 may be quickly accessed by right-clicking on a feature on the tracks image and selecting an option 
-from the displayed popup menu. Depending on context, the right-click feature allows the user
+from the displayed popup menu.</p>
+<div class="text-center">
+  <img src="../../images/right_click_example.png" alt="Example right-click to highlight a gene" width="700">
+</div>
+<p>
+Depending on context, the right-click feature allows the user
 to:</p>
+
 <ul>
   <li>
   change the track display mode</li>
   <li>
   zoom in or out to the exact position coordinates of the feature</li>
   <li>
-  open the &quot;Get DNA&quot; window at the feature's coordinates</li>
+  highlight the feature</li>
+  <li>
+  open the &quot;Get DNA for...&quot; link for the feature's coordinates</li>
   <li>
   display details about the feature </li>
   <li>
-  open a popup window to configure the track's display</li>
+  open a popup window to configure the track's display of the feature</li>
   <li>
   display the entire tracks image in a separate window for inclusion in spreadsheets or other 
-  documents. (Note that the Genome Browser &quot;PDF/PS&quot; described below can also be used to 
-  generate a high-quality annotation tracks image suitable for printing.)</li>
+  documents. The Genome Browser <a href="#print">PDF/PS</a> option under the View menu
+  can also be used to generate a high-quality annotation tracks image suitable for printing.</li>
 </ul>
 <p>
-To use the right-click feature, make sure the <em>Enable advanced javascript features</em> option on
-the Track Configuration page is checked, and configure your internet browser to allow the display of
+To use the right-click feature, make sure your internet browser allows the display of
 popup windows from genome.ucsc.edu. When enabled, the right-click navigation feature replaces the 
 default contextual popup menu typically displayed by the Internet browser when a user right-clicks 
 on the tracks image. A few combinations of the Mozilla Firefox browser on Mac OS do not support the
 right-click menu functionality using secondary click; in these instances, ctrl+left-click must be 
 used to display the menu.</p> 
 
-<h3>Printing a copy of the annotation track window</h3>
+<h3 id="print">Printing a copy of the annotation track window</h3>
 <p>
 The Genome Browser provides a mechanism for saving a copy of the currently displayed annotation 
 tracks image to a file that can be printed or edited. Images saved in PostScript format can be 
 printed at high resolution and edited by drawing programs such as Adobe Illustrator. This is useful 
 for generating figures intended for publication. Images can also be saved in PDF format for viewing 
 by Adobe Acrobat Reader.</p>  
 <p>
 To print or save the image to a file:
 <ol>
   <li> 
   In the blue navigation bar at the top of the screen, from the &quot;View&quot; menu, click the 
   &quot;PDF/PS&quot; link.</li> 
   <li>
   Click one of the PDF or EPS links.</li>
 </ol>