Users are not getting the share button under manage view, though the users are having "View - Administrator" rights.
Prior to 16.2.2 release to enable or disable Share with everyone option Admin can go to MUX > Administration > Attributes > Actions. After enabling it is working as expected.
After 16.2.2 release Actions have been moved under MUX > Administration > Actions and user would need to have access right assigned Administration - Actions - Navigate.