A DNR Dial key has three modes.

DNR control, direct. Turn to adjust a DNR setting, with the live value on the dial screen. Thirty controls are available, including RPM colour, RPM style, RPM brightness and RPM preset, global brightness, dark mode colour, wheel game and menu colour, universal game and menu colour, wheel, button box, flag box, brows, co-pilot and ambient brightness, ambient effects brightness for game and dark mode, flag box gear colour, wind, bass shakers, and iRacing fuel amount.

Sim control, read and adjust. The dial displays a live read-out and sends keystrokes when you turn it. Pick the read-out, optionally give it a short label of up to 14 characters, then bind a key for Turn up, a key for Turn down and optionally one for Press. Bind those same keys in your sim to the control's up and down, for example TC plus and TC minus, and the dial reads the live value back automatically. This mode offers 58 read-outs, the display list minus the per corner tyre and brake values and a few session counters.

Camera cycle, iRacing. Tick the cameras you want and the dial steps through them. Start iRacing and load a session for the camera list to populate; leave everything unticked to cycle every camera.

On a Stream Deck Plus the dial gets a proper touch strip layout. On Stream Dock there is no touch strip feedback, and on Ulanzi the turn steps in fixed increments because the hardware reports direction only.