The three DR3 behaviors are Single Level & List of Toggles/Commands, List of Levels for either multizone volume control or input source mixing, and Single Level plus Selector. The LCD display has a backlight for readability that turns on when used, then dims after a short time period. The names are customizable in Halogen Software to anything you like.
The DR3 is extremely flexible, as it can control both selection and volume. You can think of the DR3 as two different remotes - a selector and a level. One knob makes a selection, the other knob changes the volume. Display screens are dynamic, automatically updating when the available options change through preset activation, room combining, and so on. Therefore, the user always sees the options that are currently available.