Platforms roofs and walls

I'm glad you put this "out there". I have run into the same problem. I am building a house with a few different levels, and it is SO tricky. I finally skipped the roof thing altogether - I will fix it at the end. I also discovered that if I wanted to have decorative platforms on top of a regular platform, I had to draw walls the size of the decor, then select that piece separately and raise it above the rest. I also found that sometimes when I select just one platform to adjust, all the other platforms adjust, too. And don't even get me started with platforms and stairs. I really like having this tool, but dang - they made it so hard to use!!