Side dumping trains

A Loose station variant that either accepts a special Hopper variant, or just empties normal ones and pushes it out to one side. with the option to add extension to the dumping side, so you don't have to move the track every time the tile next to it is filled, maybe max five extensions? Could even have it be a special track zone that can be added to a Train Line

This would be great as I have trains transporting material into a dedicated logistics zone for dumping. This could entirely eliminate the need for my receiving station that's only there to transfer the material onto the dumping trucks

Side-dumping from elevated tracks (by designation area or a limited "building" for it to happen at).
On a side note, not breaking track legs when filling in around them.