Disclosed is a method of receiving and processing navigation inputs executed by one or more processors in a head-worn device system including one or more display devices, one or more cameras and a generally vertically-arranged touchpad. The method comprises displaying a first carousel of AR effects icons, receiving a first horizontal input on the touchpad, rotating the first carousel of AR effects icons in response to first horizontal input, receiving a first touch input on the touchpad to select a particular AR effects icon that is in a selection position in the first carousel, displaying a scene viewed by the one or more cameras, the scene being enhanced with AR effects corresponding to the particular AR effects icon, receiving content capture user input, and in response to the content capture user input, capturing a new content item corresponding to the scene.