Not specifically, depends on exactly what you want to set up. These are the basic options.
One) have eight of the holiday lights do what ever the ninth holiday light does. That way you can just go into the official smart things mobile app and when you toggle that master light on and off the others will go on and off. That just requires using smart lights as @Mr_Lucky mentioned. So that’s the easiest way.
Two) put all nine of the lights into a routine that goes on. And into a second routine that goes off. That’s not a toggle, but it’s a pretty quick two button option. Again you can do that through the official mobile app. The advantage this has over smart lights is that you can then activate the routine in a number of other ways after it’s been created.
https://support.smartthings.com/hc/en-us/articles/205956706-How-to-create-automations-with-Routines
Three) once you have the routines set up from option two, you can also associate those with widgets. Again you would have one for on and one for off. But you could have those widgets appear on your phone. And again you can use the official SmartThings mobile app widgets option for it. Or you could use one of the third-party options. Some of the third-party options also have the ability to set up a toggle widget so then you only need one widget for either on or off, but you’d have to check the details for each one. There’s a widgets article in the community created wiki, that would be a good place to start if you’re interested in widgets.
http://thingsthataresmart.wiki/index.php?title=Widgets
- there’s a new super smartapp developed by the community called rule machine which has a lot of options I haven’t even looked at yet. No widgets though. So it might give you what you need it just depends exactly how you want to use it. But for that one you would need to install custom code.
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So you can see there’s a lot of different ways to do things. It really comes down to how convenient you want the control to be.
In the older version of the official app shortcut groups, it was basically the same as what I’ve put for one above here. You would open the mobile app, go to the thing screen, and toggle that one group icon. So if that’s all you need, you just do it with smart lights. 