When placing views on sheets, Revit numbers them in the order in which they are placed. If you are not diligent, chances are you’ll need to adjust the viewport’s positions and rename their Detail Number parameter so that they follow a logical sequence, such as left to right and top to bottom. This renaming process can prove problematic as Revit will not allow you to have two viewports with the same Detail Number parameter. If you try, Revit will return an error saying, “Detail Number is already in use. Enter a unique number.” To resolve this, it often requires temporarily renaming the viewports to make the desired values ‘available’ before updating them to their final values—a painful and time-consuming process to perform manually, especially if the viewport’s positions are updated frequently.
Renumbering viewports with Dynamo
To solve this problem, Parametric Monkey has developed a Dynamo graph, which is available as part of our Dynamo Package…