Zoom and scroll sideways with a Mac mouse wheel
A regular mouse has no sideways wheel and cannot pinch to zoom like a trackpad. In EasyMouse you can give each modifier key (Command, Shift, Option, Control) its own wheel action, so the wheel behaves differently only while that key is held.
Set it up in EasyMouse.
Install EasyMouse, grant Accessibility and Input Monitoring permissions, and select your mouse in the device list.
In the modifier section of scroll settings, choose an action for each key. For example, set Shift to change orientation so the wheel scrolls sideways.
Set Command to a zoom action to zoom with the wheel, and give another key half or double speed to change scroll speed only when you need it.
Test in a document or browser, then save. Settings are stored per device, and you can add an app condition in automatic settings to use different actions in one app.
Before you start.
Zoom works by sending the Command plus and minus shortcuts, so it works in apps that zoom with those shortcuts. Many apps already scroll sideways when you hold Shift, so try it first in an app that does not. The app is free, so you can install it and check right away.
- Requires macOS 14 Sonoma or later.
- Runs on both Apple silicon and Intel-based Macs.
- One universal build supports both Apple silicon and Intel Macs.
- Please allow EasyMouse under Accessibility and Input Monitoring in System Settings → Privacy & Security. Please check these permissions again if macOS asks after an update.
Frequently asked questions
What is the difference between the two zoom options?
Both zoom in or out depending on the wheel direction. If the direction feels backwards, pick the reversed option.
Can I block what a modifier normally does with the wheel?
Yes. Choose prevent default, and the wheel does nothing while that key is held.
Does it affect my trackpad?
Settings are saved per device, so if you set them on your mouse only, your trackpad stays the same.
Free
Try it with your own mouse.
EasyMouse is free. You can download it and follow this guide on your own mouse. You can download up to three times a day.
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