Several months ago when i was testing elk's standard zwave device with Vizia, I was all but convinced that leviton's definition of a scene is propritary. Such scenes appear to be local to the controller they are created in and not global. On the leviton remote, you program the 4 button units by first assigning devices to each button seperately for each controller (though you can do this with limited copying) and then set levels.
I can't get to leviton's site and don't have my copy of the serial interface handy, but unless you can specify the controller in question in the commands (via node id), i think you are going to forced into the leviton's implementation of "profile" and "scene" as they are defined in the remote...
Maybe it's time for me to splurge and buy the interface and play around while i wait...
good luck...
-brad