Hello,
No i don’t want to cover all the button at least no more that just at the bottom of them when the panel is put:
https://milesun.en.made-in-china.com/product/wJFRzGUMHAcb/China-One-Set-Custom-Silicone-Rubber-Push-Single-Dome-Button-Conductive-Pad-Silicone-Keypad-for-Electronic-Accessories.html
Here is something that would do the job, but it need a custom command in order to set the good size in width and the height, as it is also a minimum of set, i think it’s more to your side to decide or not the buy one to make them available as an enhancement!
You can have a plenty of different silicon model, it’s the first i found that i show you!
They won’t require any heavy transformation, just put them onto the plastic one, the height correctly adjusted will not only make the thing more dust free but so more soft to use.
The one you provided are perhaps usable, but the top does not correspond, and it’s definitively not silicon.
Rgds,