Thanks, James.
I did search the forums for DataStore & URL, but didn’t make the connection to that post.
So I tried updating the DataStore URL to https://slicer-packages.kitware.com/#collection/6124ffb8342a877cb3b8afdd/folder/6125487e342a877cb3b8b6ed, and it seems to more-or-less work.
The above URL ‘should’ directly take one to the DataStore folder, but in Slicer it opens up initially at the root. After navigating through the directory structure in the Slicer interface, clicking to load one example (Robex Brain) I got an error message Failed to load data store page in the Data Store dialogue box. But in the topmost dialogue box, Add data into the scene, there was no error, and the selected data appears to load successfully.
—DIV