“Let’s say you wanted to type the number 5. On the core, this is done by pressing fn1+F (there are three function keys on the core. fn, fn1, and pn). While this might be a bit confusing at first, it is a fairly simple system to learn.”
No thank you. I didn’t survive punching cards to use a keyboard in 2020 where entering “5” didn’t mean pressing the “5” key.