Asset Importer Wall Object Lines

Currently, when you set the object type to one of the three types of wall objects, you see a set of horizontal lines, which is great but I would love to see two vertical lines added that represent the width of an actual wall unit. That way, when you import and size an object, you will know, if the object is between those two lines that it will fit nicely on a single wall unit; or whether it will occupy a portion of two wall units if it does not fit between those vertical lines.