How to hold control + option with 2 finger click

Hello everyone,
I'm using a software (bitwig) that zooms in/out with control + alt + scroll up/down.

I would like to be able to do this using only the magic mouse, without the keyboard. My idea is to 2 finger click to press control + alt, and the use two finger scroll to trigger the normal scrolling. When I stop pressing the two fingers it would key up control + alt.

How can I achieve that? I tried a few things but nothing worked. Im also open to suggestions on alternative ways of achieving the same result.

Thanks everyone!