Indicates whether AllMaps was included.

An array of CounterRef objects used to include counters in a SaveUnit

This indicator remembers which map was current, or is null if the indicator is not saved

Refers to all maps that will be saved

This indicator remembers which map was used as an overlay. It's null if the indicator is not saved, and typeof(System.DBNull) if the overlay map is empty.

Stores player preferenes.