Sage Construction & Real Estate

How do I change the default numbering for the A/R invoicing. I need to change the numbering and then have the next invoice be a sequential (next) number. I cannot find how to make this change.

We sometimes have multi page AR invoices. Prior to my joining the company, reports for specific number of pages were created so our terms and total print on the last page.I'm making some changes that will result in having different invoices for different…