To access tubes with the same bore, schedule, material, etc., yet with SHOP TRUE at one point and FALSE at another, it is necessary to have two tube SPCOMs. These will have identical lines in the specification except for their SHOP column entries and their names. The user does not want to have two different item codes for the same tube on the isometric, so the names should be identical up to a suffix delimiter (a colon ‘:’ by default). ISODRAFT will ignore the suffixes and the items will be totalled together on the Material list.