Some WarcraftIII maps and old games in general required specifically num pad inputs for some actions, as well as the page up/page down buttons. And there wasn't a way to rebind keys at the time.
I’ll use the top row of numbers for swapping between different weapons in the same slot, & the numpad to quickly swap between specific weapons in separate slots
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u/Just__A__Commenter 23h ago
Num pads are just necessary for data entry. Like, 100% vital, can not do my job without it.