Allows you to group exceptions into sets and turn them on and off in
groups. Exception sets may be saved, deleted, imported, exported or selected via the
"Exception Sets" menu options.

Multiple exceptions may be selected and then saved to a named exception
set via the "Exception Sets | Save" option.

Once created, exceptions may also be deleted.

Multiple exception sets may be imported from a file (replacing any
existing exception sets).

Multiple exception sets may be merged in from a file (replacing any
existing exception sets by the same name).

One or more exception sets may be exported to a file.

