I know nothing should be changed about the Preserve Collection, but I think it would be nice if you would think about this request. Simplified destination displays for German trains something like "S-Bahn, Regionalbahn, Regionalexpress" and if that is not possible, set the destination displays so that the AI trains are by default on empty and not on "Nicht Einsteigen". I wish the one who reads this a nice day and hope he or she understands what I have written here with Google Translate.
