Currently, the Barcode generator from theBarcodekit.com can generate one Barcode at a single stretch. the Barcode generator from the Barcodekit.com does have to go through a staple number of codes for conversion and generation of a Barcode to happen. so, multiple Barcodes cannot be generated due to this reason. However, updates to the CODE 128b in the future will make sure that this and many more exciting features be on deck.