hey, the ortho kit contains the keys r4 enter and r4 up-arrow twice. you could remove those two and instead add the three r4 modifier keys that would be needed to mirror the left-side mods on the right side, for those who don't use arrows there. great kits for ortho and ergo, and great design, probably won't join though since I use a colemak-like layout and am probably not comfortable with japanese legends.