Hi Lew. 
  
I have HD Architectural 2014. 
  
As far as the roof line is concerned I really don't care if I can't edit it later.  I just need to see if it will look good.  I just need a starting point and then we can modify it accordingly when we build the addition.  I would assume that someone with more advanced software can modify it and I should be able to read it with my Architectural version of the Chief software.....just not modify it further. 
  
I REALLY would appreciate someone helping.