Greetings-- Technically challenged new customer to AirVPN here. I have a question about network lock. I use AirVPN on a Sony smartphone, Samsung Android tablet, Apple iPad Mini 3, and an Apple iMac desktop. From what I can tell, the network lock feature is available only on the Mac desktop. Does anyone know if network lock can be utilized on my other 3 devices? If so, are there any instructions posted here at the AirVPN website? Thanks very much for any assistance and guidance.