I am looking for a solution to display and print set-ups and set-downs in a plan view.

In 2D Autocad we would apply arrows along the length of the duct rising or dropping with text SU or SD adjacent the duct.

My thinking was to make a family that works like stairs where the duct family recognises and applies an arrow in the direction of the rising or dropping angle.

Would love to hear if others have found a solution.