Hi Eric, I have watch your tutorial a few times now and I do not think I have the features you have for the roof and I would need to upgrade to pro to have them. I believe and correct me if I'm wrong but we can only use the auto roof in any ver of HDA? This is why I was trying to start from the beginning to get the roof to work and see what I was doing wrong? As for the drawing being upside down, being a laymen I drew it the way I sit at my computer in the house. Another feature I haven't found yet it the wall height? I was having a difficult time with the height of the backwall which I believe you were able to set in your program. Do you know if HD Pro 2021 is computable to the Chief Architect ver you use?