The * file says DONE tickets with "origin in Area 1" must be ticketed at least 7 days prior to departure and tickets with "origin in Area 2/3" can be ticketed up to 1 hour before departure.

This appears to be the only place that 'areas' are mentioned, as opposed to the 6 continents. Can anyone clarify which continents are in which 'area'?

Leaving aside the 'risks' of trying to get a 20-segment DONE4 ticketed 1 hour before departure, it's obviously easier to get the ticket issued when you're physically at your starting point, rather than having to try and get it ticketed from afar.