One of the most problems i have seen on 3ds are the 3D sliders being always triggered even when it is supposedly disabled
i gotten around it by using the parental control on the 3ds so it could help to be able to disable the 3D
Being able to use the 3D slider as brightness slide would be good since there are times you need to lower the brightness but have no access on the home menu(like while playing online or with a nearby friend)
The wireless can be disabled and enabled on the Rosalina menu anyway
Other than that are the L and R but that is other story
Another idea involving Rosalina would be able to press a button a single time directly from the Rosalina menu or something like that, like for times you dont use certain button on the game but you need to press it for certain reason on one part and it is broken(mostly using the home button since you only need to press it one time)
another good thing would be able to use the d-pad as c-stick but that's just me
i gotten around it by using the parental control on the 3ds so it could help to be able to disable the 3D
Being able to use the 3D slider as brightness slide would be good since there are times you need to lower the brightness but have no access on the home menu(like while playing online or with a nearby friend)
The wireless can be disabled and enabled on the Rosalina menu anyway
Other than that are the L and R but that is other story
Another idea involving Rosalina would be able to press a button a single time directly from the Rosalina menu or something like that, like for times you dont use certain button on the game but you need to press it for certain reason on one part and it is broken(mostly using the home button since you only need to press it one time)
another good thing would be able to use the d-pad as c-stick but that's just me