Is there an option in QK Config to latch a key? I have one of the original tri-mode QK75s and I love it, but it only works with QK Config as far as I know. I've been playing some games where you just have to hold forward (W) for a long time and it is hurting my wrist, so I would love to have it where Fn+W just holds the key until I press W again, ideally with or without Fn. I can't find anything in the software for that, though.
Depends on your needs. If you actually use the mumpad a lot because you are an accountant or just do a lot of data entry, yeah, keep the mumpad. If you're not actually using it much, then it's really not that big a deal. You can also get a separate numpad and use that for the times you do need it, then move it out of the way the rest of the time.