The Show This Group Only command limits the scope of the displayed BI data to display only the selected folder and all its children. Actually, you can use it as another tool that helps with focusing on a sub-tree and speeds up your search and discovery.

To run this command, select a folder or another container in your BI data tree in the Users tab, and choose Show This Group Only on the context menu.

Warning
You cannot select a document. You cannot select more than one folder.

When you do this, the second filter list in the User Groups filter group becomes inactive, and the Show marked group only filter becomes active and checked:

To cancel the Show This Group Only command, uncheck the Show marked group only filter. All user accounts/groups will be displayed again.