Invoices seem to have a / and random 5-digit code after the sequential number. Is it possible to remove that / and 5-digit code to just keep the sequential number? There's info at http://www.amember.com/docs/How_to_set_up_custom_invoice_numbering, but I don't know enough to understand it and whether such changes are possible and how to do them.
UPDATE: Answering my own post... I now understand, and will add this in case it'll help someone else later. Simply adding the code at http://www.amember.com/docs/How_to_set_up_custom_invoice_numbering removes the random 5-digit code, replacing it with a date and sequential numbering.