What does this actually do? Do they sub in in timetable mode? If so, when and where? How does TSW know when to sub in? Could I solve the complaint many of us are having with Stuttgart - Heilbronn by creating my own mixed formations?
The only thing it does is stop you from spawning custom formations in free roam (I don't know why anyone would want to do that, or if that is how it is supposed to work) I would like to see the ability to have custom formations substitute into timetable services and always request this idea in the winter surveys, but I don't think DTG have any plans of doing it (unfortunately)
