I seem to be able to, but would like to do it by the rules. Particularly whether states should be SA or South Australia etc. And what level should be used for subcategory names, ie should I create "Maylands" or "Maylands, South Australia" or "Maylands, South Australia, Australia" or "Maylands, South Australia, Australia, Oceana"? The first is likely to be ambiguous, the last is very clumsy.
Thanks for your help,
David