How I model Lean to roof in Archicad

How to model Lean to roof in Archicad Lean to roof also known as Flat roof. Archicad tutorials playlist link below you may want to check that out👇👇    • ARCHICAD Tutorials by Arc Walter Eyare Otu   How to model fence part 1    • Archicad Fence Model   How to build first floor in Archicad    • How to build first floor in Archicad Â