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I suppose if I asked Mrs A to look at that link, Barry, and try and work her way through it, she might manage it. She is highly intelligent, although like many 70+ women, thinks technology is beyond her (it isn't).
On the other hand, she is ill. Not a slight cough or cold, but very ill. So I shall forget it for now, let her keep her iPad close to her, and as I say, if she gets the charging unit knicked, tough.
It's hard enough trying to do fiddly things on phones when they are on the desk in front of you. When they are five miles away, it's another level of forget it!
Thanks for your advice.
A