Capture billing document on spool request

Hi experts,

My requirement is to generate a new Printing sequence number (just like the spool request number) upon printing a form. At the same time, capture the the billing document that's been used as a reference to it. In total. On this transaction, when I click the standard print button, I must save the generated print number and the billing document used to a customized table. This is to monitor the billing documents that has been already printed.

Please suggest.

Thank you