Edit a fabrication part in Revit to define the necessary dimensional values and connector settings.
The Edit Part tool opens the Edit Part dialog. Use this dialog to edit dimensions and connectors for a fabrication part. You can modify only properties associated with connectors that are not connected to another part.
You can edit a part before you place it by selecting it in the MEP Fabrication Parts palette. You can also edit a part after it has been placed in the drawing area. The Edit Part tool is not available for hangers.
The preview pane displays the edited part. Use the ViewCube navigation tool to change the orientation of the part in the preview pane.