This is awesome! While at it, please consider adding R0 and R5 support since those aren't running in a standalone kit with GMK Griseann R2
Even tho some people wouldn't technically consider them "Essentials" I'm sure the option to buy a kit like that would be appreciated since an R0 in WoB is not possible to buy without recurring to aftermarket, and since that R0/R5 GB ran more than 2 years ago, I feel like this is a good opportunity for a new round
In the case you decide to do so, I would move the R5 Numpad Enter to the R0/R5 kit
BTW, out of the top of my head, why is there a second accented Fn key. Is it there just in case someone wants to use the accents in 2 different boards with a split RShift?