Most bookmakers add a bonus to certain bet types when a particular criterion is met, such as all winners,
but there are often conditions attached.
Many bookmakers will only apply a bonus to bets that consist entirely of horse racing and/or greyhound
selections (except ante-post). Some bookmakers will apply bonuses to bets containing selections involved in
other sports, but they may restrict them to certain markets. Other conditions may also apply, such as minimum
odds for each selection, or a minimum unit stake.
Since there are a number of conditions that dictate whether a particular bet qualifies for a bonus, the
Include Bonus option makes it easier for you to include, or exclude, the bonus settings from your
calculations. This can be done on a bet by bet basis, without needing to alter individual bonus settings,
which are otherwise normally fixed for a particular bookmaker.