This policy setting allows you to prevent the quick pick menu from displaying when a user clicks in the Search box. If you ...

This policy setting allows you to prevent the quick pick menu from displaying when a user clicks in the Search box. 

If you enable this policy setting, when a user clicks in the Search box, the quick pick menu will not appear until the user starts typing. 

If you disable or do not configure this policy setting, when a user clicks in the Search box, the quick pick menu will appear.