Currently, images can only be georeferenced with a coordinate pair for each location. for a vertical west-east section the coordinates are for either Easting-elevation or Northing -elevation.
It would be of great help to be able to 3D georeference an angled section (e.g. not in the West-East direction) but specifying the X-Y-Z coordinates for each of four corners. So that I can display this in ArcScene or other 3D viewing software.