Sorry, not sure what you need help on. Devices like that are pretty simple to setup. All the dox should be online if you need them.
Sounds like all you want is for a simple 1 button use(like Stop/Go)? If that's all you really need, maybe something like this would be better?
If you need more help, & the seller can't help you, then we need more details...
Pessimist: Oh, this can't get any worse!
Optimist: Yes, it can!