Which mouse button?

I tried it and it definitely allows me to late dash but I find I can only do it to the one side. It's like I can reload but not fire the gun lol. Is this just timing issue?

Okay sick I'll try that! Thanks man

I was wondering if anyone had any suggestions. I've always used these keybinds but I can't late dash or anything with them.
Any suggestions in terms of keybinds that can allow me to late dash etc
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