"Go Here" for surfaces other than terrain

At the moment, "Go Here" from the right-click segments only works for locations on terrain (land). As so much of SL is constructed upon prims rather than directly on the ground, would it be possible to have "Stand Here" for the top of prims, in much the same way as "Sit" works over long distances.

If you choose "Sit" from a long distance away, your avatar will be walked/run/flown to the location and sit down. You can then stand up.

It would be useful for the same movement (autopilot navigation) could be achieved onto surfaces suitable for standing on.

I think it would be better to make this a third movement model, like "Mouselook", so you could quickly lay down a trail of waypoints to follow (like you do in Everquest) rather than having to right-click-select each one.