# How to assign one mouse button to a Modifier Key

**URL:** <https://community.folivora.ai/t/how-to-assign-one-mouse-button-to-a-modifier-key/45715>\
**Category:** Configuration Help & General Discussion\
**Created:** [December 3, 2025, 12:21am UTC](https://community.folivora.ai/t/how-to-assign-one-mouse-button-to-a-modifier-key/45715 "2025-12-03T00:21:57Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![hail](https://community.folivora.ai/letter_avatar_proxy/v4/letter/h/f19dbf/32.png) [@hail](https://community.folivora.ai/u/hail)\
**Post date:** [December 3, 2025, 12:21am UTC](https://community.folivora.ai/t/how-to-assign-one-mouse-button-to-a-modifier-key/45715/1 "2025-12-03T00:21:57Z")

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I have been trying to mimic an Alt + Mouse scroll to zoom in and out my Mac screen. I press and hold the Alt on my keyboard and use the scroll wheel on the mouse to accomplish this by Mac OS default.

I wish to accomplish this without reaching out to the keyboard. Is is possible to assign one of my 12 buttons on my mouse as a modifier key, then use the scroll wheel to zoom in and out? then press the same mouse button again to disable the Modifier key.

I did find an action CMD Down, and Up, but couldn’t get it to work at all.

I use keyboard shortcuts to assign all my actions to 12 mouse keys.

Thank you