Thanks for the hint.

Every time I ask, it gets more complicated rather than less.

A tool to check and tidy up is just what I need. I'll use Javawa to try to correct everything I have done badly over the years - 3 devices, 4 sim cards, 3 PCs, 15 maps (different versions, parts overlap etc etc) and no real idea of what I was doing.

Wish me luck

(and I will back up before I start!)