[Koha] Barcodes (with name of library)

Hello, It's been a long time since I have posted a question. We are getting ready to print some barcodes for new books. The barcodes that were printed a long time ago have the name of the school with the barcode under it on the barcode label. I can only print the barcode on the labels so *How do I set it up to print the name of the library with the barcode under it?* Thank you, Bill Kingsley