This shape editing tools will not appear if you define the roof slope.
How to make a custom roof in revit.
Do not give any slope to your roof edges.
How can make mansard roof in the revit architecture.
Tutorial on roof construction modeling in revit.
Your downpipe elbows should automatically generate via the revit autorouting.
Create two vertical reference plans on each side of the center axis.
We can learn it with watching this video.
Get these project files and all advanced 1h courses.
You may have to adjust its xyz location before finishing the mass which can be accomplished in plan or elevation.
You will see shape editing tools from in your ribbon contextual tab.
Open up revit and create a new structural framing complex and trusses.
First activate add split line and draw the lines like below.
After you finish creating the roof select it.
Navigate to a suitable elevation view west elevation in the example next go to systems tab pipe draw your desired gutter downpipe run.
Generate revit roof in revit create a new mass and import the sat file from the previous step.
You need to create the bay window roof separately.