He means 1-0, - and = and alt and shift combos with them.
He probably wants 1-=, alt, ctrl, shift, alt+ctrl, alt+shift, shift+ctrl, ctrl+alt+shift combos
Unfortunately, keybindings are controlled from the options window, we can't add keybindings that way. There may be a way to add keys manually, but I'm pretty sure you can't.
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