This option affects the way in which the filters are
used together. You can set an AND or OR condition. The default is OR. Select (
) this option
to set an AND condition.
This option will be applied to all filters
that have been set. For example, if you have already set five filters,
they will have logical OR functions applied to them by default. If you
then select this option, the five existing filters, as well as any successive
filters that you set, will have logical AND functions applied.