Smartthings is just not very good at scene management, probably the main reason why there is so much custom code. That’s true on both the software and the hardware side.
There is no officially supported wall mount scene controller. And the only officially supported handheld is a tiny four button device.
But then there’s no official software rules engine/scheduler, either.
But there are literally about 12 different ways to set up rules and schedule events for smart things. It’s just that they’re not put together in any consistent way.
There are some people who use the Enerwave SC7 or another wall mount scene controller, but there are other people who try the exact same models and find that they don’t work for them. None of it is officially supported, and occasionally seems to just stop working, probably because of changes to the ST clouds that are not documented. So there really isn’t a hardware option I would feel comfortable recommending right now.
There is a very nice free web based dashboard developed by a community member and now officially supported that many people use as a wall mount controller on a tablet. Through the use of virtual switches, you can trigger whatever complex scheduling you set up through one of the many options documented at the link above. But it’s going to require some effort.