I have an huge wish (at list I think so).
I wish that construction elements (walls - slabs - roofs etc.) were visible on more than just home story. Best way will be similar to Objects but more advanced. There should be drop down list button - similar to layers - where you open window with option to choose, what story you want the wall (ex.) to see on, and how (some options, like "nonprintable"). Additionally Windows and doors should have the option, what story you want to see it on. This would help a lot with balloon frame walls for example. (personally I see much more use for that).