Hi, i am pretty new at openerp 7, so i feel really lost, i just want to add a field wich indicates the line number from a list of products, at the moment i dont care if it isnt in the system, i just need to show it on the pdf (even manually before printing), i already customized my report using the openoffice plugin, so that's all i know.

something like this:

item | code | product

1

2

3

and again, i am just asking for the simplest way to do it, i tried adding a new field and edit it (typing the numbers) before printing but ended with 2 descriptions fields with the same content

thanks for reading my bad engish question.