Suggestion - warning to show unconnected trains

[SkiCarver]

Hi, I have blueprints with multiple trains. For whatever reason, sometimes the train carriages are not all connected when the build is complete. If I do not notice (by using map mode), then the head of the train dries off without all of the rest of the train.
Would it be possible to display a warning that there are unconnected carriages nearby, when the gui to define the train route is opened? That way, when the train gui is selected in order to define the route or switch the train to automatic, I will always know if there are unconnected carriages without having to check every time.
Thanks.