Select a Chapter, right-click and select
Insert > Persistent Query.
The filter content is dynamically inserted under the designated
Chapter (i.e. the entire content resulting from the application of
the filter is inserted).
When the Catalog is opened in the future, the filter will be
dynamically computed when you do manually execute the Expand command.
The Expand All command will not apply the persistent query to the content; for
branches in which persistent queries were inserted, the Expand will
stop at that level. You can then manually expand those branches to
get the filtered content.