In the Settings window (see Customizing SDX Interest Rates) the Option/Swap tab lets you customize the behavior of individual instruments.
Currently you can customize the behavior of the following instruments:
Cap/floor. For more information see Customizing the Cap/Floor.
Vanilla swaption & swaption strategies. For more information see Customizing the Vanilla Swaption & Swaption Strategies.
Inflation instruments. For more information see Customizing the Behavior of Inflation Instruments.