This one has been bugging me for a very long time and with the new developments in stories and layer relationships, I'm not sure why it hasn't been incorporated. We should be able to see objects that need to project vertically from one layer up through other layers. For instance, if I have exterior walls that should be continuous from the ground floor to the third floor, I shouldn't have to draw these 3 times. Currently, I need to draw them 3 times or I need to draw it once and then use various classing work arounds to add the appropriate windows and doors and have my 2d working drawings display correctly.