VA01 automatic line items

Hi,

I have a request from our users that while in order creation (VA01) they would like to click an option that will check a table and add line item(s) to the order automatically. The problem is I can't use a BDC or BAPI because I am in the order and it has not yet been saved. I tried to add a line to XVBAP in debug but it does not add the line on the screen.

Has anyone had a similar problem?

Is there a userexit that will allow this?

Thanks for your thoughts

Eric