2c8a873e7286d797e88549d5a2825f0ea6fe3f04
chmalee
  Fri May 15 15:07:52 2026 -0700
HubSpace now allows tracks hubs to be defined via hub.txt+genomes.txt+trackDb.txt files, refs Baihe email and #37566

diff --git src/hg/htdocs/inc/hgMyData.html src/hg/htdocs/inc/hgMyData.html
index 3279e43b9cb..6148d80ff1c 100755
--- src/hg/htdocs/inc/hgMyData.html
+++ src/hg/htdocs/inc/hgMyData.html
@@ -28,30 +28,40 @@
             all files at once from your computer.
             </li>
             <li>
             Upload an entire track hub along with all supporting files (hub.txt,
             bigWig, bigBed, etc.) to visualize the hub.</li>
             <li>
             To update an existing track hub on Hub Space, you will have to enter the hub's name
             again. Otherwise, Hub Space assumes that you are trying to create a new hub.
           </ol>
           <p>
           If a hub.txt file is not provided when uploading the data files, a hub.txt file
           is automatically generated. The generated hub.txt file is configured with the
           <a href="/goldenPath/help/trackDb/trackDbHub.html#useOneFile">useOneFile
           trackDb setting</a>, and as a result, each hub is limited to a single genome assembly.</p>
           <p>
+          Hub Space also accepts the standard multi-file hub layout: a hub.txt
+          that references a separate <code>genomesFile</code> (typically
+          genomes.txt), with one <code>trackDb</code> file per genome. Include
+          hub.txt, genomes.txt, every referenced trackDb, and any 2bit files
+          in the same upload, and Hub Space will derive each file's assembly
+          from the hub definition. For more complex multi-file hubs, the
+          <a href="https://hgdownload.soe.ucsc.edu/admin/exe/">hubtools</a>
+          command-line uploader remains the recommended path.
+          </p>
+          <p>
           <i>Editing the generated hub.txt file is not yet supported.</i>
           To customize the hub configuration or data display, replace the generated
           hub.txt file with your own version after uploading the data files.
           </p>
           <div style="display: flex; align-items: center; gap: 150px;">
             <p style="flex: 1;">
             By default, your most recently used genome assembly is selected after choosing which
             files to upload. Use the <em>popular assemblies</em> drop-down menu or the search
             box to select another genome assembly.
             </p>
             <img src="../images/HubSpaceUpload.png"
             alt="Example of the upload dialog box for Hub Space" width="35%">
           </div>
         </details>
     </div>