I add a property to a PolylineSet using the code below (In the Petrel UI they are named “Attribute labels”) using (ITransaction trans = DataManager.NewTransaction()) { trans.Lock(polylineSet); PolylinePropertyCollection ppc = polylineSet.CreatePropertyCollection(); trans.Lock(ppc); property = ppc.CreateProperty(PetrelProject.WellKnownTemplates.MiscellaneousGroup.General, name); trans.Commit(); } I would like to change the size and color. Does anyone know if this is possible via Ocean? I want to do this because these labels have a size of 1 and color black and it isn't a good default for me. Thanks in advance