i have a number row, and a number pad (on a layer)
look up the lily58 for a rumber row.
for a numpad, I just press a key with my thumb on the left keyboard, and my whole right keyboard becomes a numpad. 7 8 9 stay in the same place as they normally are on the number row, with 4 5 6 under them, 1 2 3 under those.
