New selection of vertices
A new method for selecting vertices has been programmed because its been difficult to select the point you want when there are more than one vertex that has for example same x and y value but different z value. The new method will investigate all vertices that has the same x, y value (when working on the xy plane) and then either return the point with largest or least z value depending on what you say you will have and if there is more than two you can say you will choose manually and a dialog show up and let you choose.
