Just change the names to 'multi-girder member' or 'single-girder member' so that different categories don't have to be made for things like LONGITUDINAL STIFFENERS, or DIAPRAGMS… these can just be part of the generically named components.
Creates a more generic naming convention that gives more clarity to users and removes the feeling like you're 'tricking Infraworks' or using it in a way that it's not intended.