The "power" button for the 950 is a discrete "power off" to aid in setting up macros.
A button that says "Power" on it shouldn't have to be explained...
Most of my beefs with the 950 remote would be eliminated if the Theater Master people did one simple thing: made the source mode button operation user selectable. In other words, I wish there was a simple setting in the remote, that controlled whether or not the remote "mode" was *switched* from the Aud device to the *source* device whose (who's ?) button was just pressed. Oh well...