I raised same questions many months ago here and in GE Plus Support. On the sorting issue, Barry Hunter came up with a brilliant online tool
KML Placemark Sorter
http://www.nearby.org.uk/sort-kml.phpAlthough obviously not as convenient as an in-built facility (which disappointingly GE still lacks a year or two after the first requests for it), the tool is very easy to use. Even so, recently I tried to go one stage further by using an external program (Macro Express) to try to automate it. I can now highlight an unsorted folder
xyz in GE, enter a hotkey, and get back a new folder
xyz-sorted.
However, either my macro is still flawed or there's some timing unpredictability it can't handle, because 10% of the time it goes awry!
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Terry, West Sussex, UK