Enable the driver to adjust — at least fore-and-aft — the position of the passenger seat.
This would give more room to a boarding passenger — either into front or rear passenger seat. Perhaps a button to enable (some or all of) the driver’s seat controls to be temporarily assigned to movement of the passenger seat.
Moderator: For example, the Lexus LS460 has a button on the side of the passenger seat towards the driver that moves the seat forward or back. We do not think the current passenger seat design is software controlled, so a hardware change would be necessary to add such a feature.