How do I enable Personal Hotspot in the OS X WiFi menu? I have two Macs: my work MacBook Pro (retina, 15-inch, mid-2014) and my personal MacBook Air (13-inch, bought July 2013). Both are running OS X 10.10.3. When I click on the WiFi menu on my Pro, I see "Personal Hotspot":



It's showing my iPhone 6, running iOS 8.3.

But I don't see that on my Air.

How do I enable Personal Hotspot on my Air?
The Mac and iPhone need to have the same iCloud account set up. 

If they do, and it's still not visible remove the account from and re-configure it on the device that's behaving unexpectedly.