You can make a show/hide button target start as visible or not visible. To change between these options, select the show/hide button and look for the ‘Should Target Object Start Visible’ switch under the target object dropdown:
Turning this switch on will make the target appear in the scene when the user first scans the marker. If the user taps the show/hide button it will hide the target object. Tapping it again will show the object, then hide, and so on.
Turning this switch off will make the target invisible in the scene when the user first scans the marker. If the user taps the show/hide button now, it will show the target object. Tapping again will hide, then show, and so on.