Enable AirDrop on older Macs:
This setting lets you use AirDrop with older Macs that don't officially support it. Note that this setting causes AirDrop to fall back on an alternative method for communicating with other Macs so you must enable this setting on all your computers, even if they normally support AirDrop.
Display in login dialog's Name field:
With Cocktail you can set the login dialog's Name field to be populated with one of the following: