The Mode by itself doesn’t do anything. It’s just a single variable that you can set for your SmartThings account.
The various rules options you can use in SmartThings, such as the official smartlighting feature, routines, many of the smartapps in the marketplace in the SmartThings mobile app, and of course web core, can use the mode so that you can say a rule should only run in a specific mode or not run in a specific mode or maybe start running when the mode changes to a specific mode. But it’s the rule that is controlling what happens, it’s just using the mode as a “filter” if you set up the rule to pay attention to the mode.
So it’s sort of the other way around from what you were thinking of. Instead of creating a mode and then listing all of the things that will happen in that mode, you create a mode once and from then on whenever you create a rule you can decide whether that rule will pay attention to that particular mode value or not.
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