I get to the page by clicking a menu item that is an external link:
index.php/component/comprofiler/pluginclass?plugin=cbgroupjive&action=panel&func=groups&Itemid=478
then I click 'Joined Groups' to render the list of joined groups as shown in my previous post.
I did look at the tab_groups.php code, but I did not see where the <a>...</a> was inserted for the hyperlink to the associated category. I even commented out this line and it had no effect:
# . '<div class="gjMainContentInfoBodyBy">' . ( $row->parent ? CBTxt::Ph( 'In [group] of [category]', array( '[group]' => $row->getParent()->getName( 0, true ), '[category]' => $category->getName( 0, true ) ) ) : CBTxt::Ph( 'In [category]', array( '[category]' => $category->getName( 0, true ) ) ) ) . '</div>'