Putting a numpad on a 13” laptop

Digging out my old 13” university laptop from +10 years ago. Check out how they’ve implemented a numpad with the Fn key:

Blue letters on the RHS of the keyboard:

That’s pretty smart IMO. Having a numpad on homerow is pretty slick. I’ve done no deep diving into how the input controller works on the 13” laptop, anyone here have any hands on experience to comment how this might be implemented?

No hands on but the keyboard on the 13 is handled by the embedded controller (I am pretty sure) and that is open source so you could probably implement that if you wanted to.


It is pretty slick, but I remember using something similar long ago. Since the numbers ar offset, it was harder for me to get accurate data entry.

full size external keyboard for me, when I am entering numbers.