Thank you very much! I really appreciate it that you enjoy it.
The method provided does not work, at least not on my side, with Wacom's latest drivers, sadly. So, I can't implement it.
Radial menu is a project that I am doing research on. The idea I have is to make it in C#, be very nice looking, fully customizable, and possibly per application menu. But, I cannot provide any promise. It has many challenges to surmount, and still doing research and planning.
No problem, I am glad to share my progress.
Next version is coming in a few days, just finalizing a few things.