Where can I set another button in Fortnite to split or split ammunition or materials?

op
1

I don't know where to find it, because I've already looked in the keybinds maybe someone of you knows better there, so where can I set another key in Fortnite to "split" or split ammunition or materials?

Le
-1

In because settings. Where else?

I do everything with the mouse pointer, so I can't say exactly which setting