The 3-in-1 trailer always uses the tipping function first, which raises the trough.
When unloading in buildings or under roofs, this often leads to an unpleasant collision.
If you change the order in the F1 menu, this will be reset after the next unloading at the latest.
I have therefore adapted the original trailer to prevent this.
The moving floor (without tipping function) is now always used first for unloading, including by AutoDrive.
Credits:
Iwan1803