Tone2 Maker Kit button

I am interested in purchasing the Tone2 Maker Kit from Amazon, but I noticed that the kit does not include the button required for operation. From my research, it seems this button is essential, as it performs multiple functions (e.g., rotating, top pressing, and side pressing). However, I couldn’t find any information about where to obtain this specific button or if it’s compatible with any generic options.

Could you please clarify:

  1. Where I can purchase the button for the Tone2 Maker Kit?
  2. If it is a proprietary part, is there an official source or additional accessory kit that includes it?
  3. Are there any alternatives or specifications for compatible buttons if the official button is unavailable?

Check this one: Button for Tone2 Maker Kit