rodh,

By default, PlanetPress EnvelopeNOW comes with hardware configuration files for the PB DI350, DI380, DI400, DI450, DI500, DI600, DI900 and DI950, each with various options for folding, OMR and barcodes. More configuration files can also be added, provided your inserter's manufacturer produced one.

You can read more about this here:
http://help.objectiflune.com/EN/planetpress-envelopenow-user-guide/manageconfigurationfiles.html

Hope that helps!

Regards,
Raphaƫl Lalonde Lefebvre