In the TrainMultipleUnit, it will be possible to have one or more composition lines, with this syntax:
composition=translation_id,English name of composition,<unit spec 1>,<unit spec 2>,<unit spec 3>,...
Where a unit spec
is defined as either just the TrainUnit
ID:
unit_id1
Or a TrainUnit
ID followed by a min, default and max number of duplications. 0 is allowed as the min and default number: