If you have created different scenes with the Casambi app you can control them from a single power switch. 

Turning on the luminaire that has this option configured will activate the specified scene and the luminaires in that scene will go to their defined scenario. Note that all luminaires in the scene must have power (The Control scenes option does not switch power on to any devices).

Turning off the Control scenes enabled luminaire will turn off the scene, and the luminaires that are currently controlled by that scene will fade off.

To enable this Smart switch option, select the ‘Control scenes’ option from Smart switch and tap on the desired scene to select it. Confirm changes with Done.