Saving Selection and Search Sets
Select all the items you want saving.
Go to Edit, Select, Selection Sets, Save Current Selection
or
Right click on the Selection Sets control bar and choose Save Current Selection
Saving a selection set
Go to Edit, Select, Selection Sets, Save Current Search
or
Right click on a blank space on the Selection Sets control bar and choose Save Current Search
Saving a search
New selection sets and search sets are named "Selection SetX" where 'X' is the next
available number added to the list. A selection set is identified by this icon:
and a search set
by this icon: 
Note
Saved selection and search sets can be renamed by slow clicking (clicking and pausing without moving the mouse) on the set, or clicking on it and hitting F2
