Where would Neil go to set up and customize gestures on his iMac?

To set up and customize gestures on an iMac, Neil would go to the Trackpad settings in System Preferences. This is because Trackpad preferences specifically allow users to enable and customize various gestures that can enhance navigation and productivity on the Mac. In the Trackpad section, there are distinct options to tailor gestures such as swiping between pages, zooming in and out, and viewing Mission Control, making it the appropriate place for customizing how gestures function.

The other options pertain to different settings. The Mouse settings are focused on configuring mouse functions and do not cover gestures associated with the trackpad. The Bluetooth setting is for managing Bluetooth devices and connectivity, which is unrelated to gesture customization. Lastly, the General settings do not include gesture options for either the mouse or trackpad.