Brad Kingsbury

I wish to create a scene called "Spa" in which it first enables the SPA READY mode, using one device switch, and then after that, turns on the SPA HEATER, using another device switch. When I add the 2 device switches to the scene, how do I ensure that the SPA READY device switch is executed first, then the SPA HEATER device switch? The order is important, since the power for the SPA HEATER switch is disabled, until the SPA READY device is ON.