I've just worked out how to do this on a Mac (never having had the need before) and even how to configure the VPN properly. And how to lock these preferences so that no-one arseing about with my keyboard can change them.

It's nothing like the above. Macs don't have silly things like 'control panels' and 'taskbars'. Can't understand why the whole world doesn't get themselves proper, grown-up computers . . .

Across the evening sky
All the birds are leaving