Is there a setting or extension for this? Does anyone know some snappy ways to accomplish this?
My current method: Draw a line at 12" then a perpendicular line at whatever rise/run I’m looking for, in this case, 4" per foot.
And if you want to dimension the angle or slope in SU rather than Layout, there are two extensions on the SketchUcation Plugin Store:
Angular Dimension 2 and Slope Markers.