I’m trying to Array and Duplicate the wall but it doesn’t show up
Is there another way to randomly repeat the walls?
Walls need a curve to be drawn in the UI; the API and therefore Dynamo is no different in that respect.
The Wall.ByCurveAndHeight or Wall.ByCurveAndLevels will do the trick. Dynamo Dictionary.
Both of those constructors require a Dynamo curve as the base element. You have one of those now, but you’d need to move that curve along the relative XY plane by a given distance for each copy to get new curves to define the walls. Goemetry.Transpose should do the trick there - I recommend the method which takes a direction and a distance in this case.