I am in the Sales app in LIghtning and there is an i icon that reads Ask your admin to upgrade this app to lightning.  I am the Admin and when I try to do this in the Lightning Experience App Manager there is just an edit button and not an upgrade.  I have already edited the app in app manager to show in Lightning.  It is the out of the box Sales app.  if it cannot be upgraded is there an easy way of cloning the oob Sales app?