@Ashok. I am connecting a z-wave relay to the garage door opener. This is an isolated contact switch (Linear FS20Z (can be added to the Wiki BTW as it is working perfectly fine)) .
This is a binary switch, however, I have configured it to work as a momentary contact switch with the simple rule below. (e.g. push button on garage door remote).

//Off-Topic - The alignment is not proper when I have a very long name for the sensor
This is something SmartThings as well as InControl do.
E.g.

The request, I was making was, can you have a separate device type that allows you to configure this as a momentary contact switch. Essentially, if it is ever turned on, you turn it off automatically. This is not a huge feature request, but I think it could be useful for a lot of people.
Also, I will open a separate thread for Rules.