Ok so after just a couple of additional tests, specifically with tapestries and the hanging swords rack from the heritage tokens. Once placed on the wall, will allow for no deeded item placement of single or multi tile nature to be placed in the tiles directly in front of said hangings, this is a change from the way things were before. In addition it would appear that the art from the wall now protrudes further into the tiles to the souh or east, depending on the facing of the art, than previously, obscuring objects that are "forced" onto the tiles in front of the placements through the use of goza z axis manipulation.