'From https://www.cadlinecommunity.co.uk/hc/admin/articles/203069922 Try 'oHoldingPositionName = InputBox("Specify the N A M E of the new iProperty", "Cadline Community - iProperty Name", "New") oValue = InputBox("Specify the V A L U E of the new iProperty", "Cadline Community - iProperty Value", "1") 'iProperties.Value("Custom", oHoldingPositionName) = oValue 'iProperties.Value("Custom", "POLOTOVAR") = oValue iProperties.Value(ThisDrawing.ModelDocument.DisplayName,"Custom", "POLOTOVAR") = oValue Catch End Try