Z wave local scenes were never done programmatically. Something physical happened with one zwave device which caused a command to be sent directly to another Z wave device. It didn’t go through the hub at all, so any edge Driver would be irrelevant. Push a button, another light comes on. But you couldn’t issue a command to make that happen. That’s just part of the Z wave specification.
Anyway, I didn’t want to get too far afield on this, but since you brought up the Z wave possibility, I just wanted to mention it.
I’m pretty sure to do what you want in the SmartThings architecture you need an automation, either a routine, a rule, or a custom smartapp hosted elsewhere.
The only exception I could think of Might be @TAustin ‘s mqtt project, which technically isn’t an exception, but lets you run a smartapp and a broker on a local server. But at least keeps you out of the cloud.