Families are saved-on-disk collections of issues according to a variety of criteria.
There are FastTrack predefined families in many categories and a special category of
personal families that you create yourself using tools on FastTrack's Family Tab.
The Family tree is a collapsing/expanding tree structure. Click the
little Plus sign o the left of each Category to expand or collapse the tree.
The Sieve combines, filters, and removes issue in the Issue List to
create a custom list that can be saved as a Personal Family.