it says you can do bulk job invoicing but not sure how. I suggest you do what I do and ask the owner
https://groups.yahoo.com/neo/groups/GeorgeSupport/infoyou need to sign up but once thats done you can ask him about george and he answers quiet quick.
POST your answer so we all know how its done.
George Version 3.71A4 (Release 9) (16th September 2013)
More minor change to Invoice layout for window envelopes
Internal improvements to Direct Debit/Standing Order processing
Add tax rate to Invoices
Bulk job processing - add Invoice Reprint option
Earnings and Debts report - add eMail option
Various internal fixes & enhancements