1. If the scroll wheel zoom is set, the function of moving the picture up and down will automatically fail, which means that the scroll wheel zoom and scroll wheel movement can only be the same.

2. Generally, you don't need to set the wheel zoom, because you can zoom without setting the wheel zoom. The method is: hold down the Alt key.

3. If you must set it, the setting method is: Edit-Preferences-General-Scroll Zoom.