Share Email Facebook Twitter LinkedIn CableTraySizes.ClearAll Method Removes all MEPSizes in the cable tray sizes. Namespace: Autodesk.Revit.DB.ElectricalAssembly: RevitAPI (in RevitAPI.dll) Version: 26.4.0.0 (26.4.0.0) Syntax C# public void ClearAll() See AlsoReferenceCableTraySizes ClassAutodesk.Revit.DB.Electrical Namespace