https://huion.freshdesk.com/en/support/solutions/articles/44002275074-how-to-set-up-use-the-radial-mode-on-huion-inspiroy-keydial-kd200-inspiroy-dial-q620m-and-mini-key
How to set up the Radial mode on Huion Inspiroy Dial Q620M and Mini Keydial K20 & KD100? : HUION