create subform for purchasing form

create subform for purchasing form

Hello,

I create a purchase form with date, purchase id and total cost. Than i create a purchase_item form with the purchase id, product, unit cost, qtd and total item value for every line of the purchase.

There is a way to create a easy purchase form where the user could set the purchase data and id, than add many purchase lines as she want's?

Thank you very much,
joão melo