1: Deck 32mm x 140mm Pressure Treated, location Second Floor and the Stair is a 1219mm Pressure Treated Deck Stair located Second Floor, this is the first to do.
2: make 3 new location as in building location metric.jpg
3: enclose the deck whit invisible walls all 4 side do the same to the stair but there you need to make adjustment later
4: add roof at location 5 (in building location metric.jpg) use I have use this roof, 8/12 Pitch Hip Roof, Clay Tiles whit a 5 deg slope at hip-roof and a gavel roof this will be a normal roof.
5:add roof at location 4 ( in building location metric.jpg) use the same roof as in paragraph 4, gavel roof Support Type: Rafter a. Support Height: 2500. and hip-roof Parameters a - Slope Value 32.00