Out the squares Click the wall : hide Click the wall : hide you will see that the squares are not drawn on the same level some are transparent some are reversed somme are full ...! It's the mess if you want move someone just group them & move that you must make from the beginning draw one :group it, copy move with snap (or make component if you want an elaborate model with possibility of change) At the end group all et voilà Name group is a good thing for use after the Menu Window/Outliner for an easy selection