Should be no problem if you use related fields from another form (many to many or simple relations). This is your classic Invoice arrangement - Order to Line Items (MM*) and Order to Customer (1-1).
* Note - In above example should really be 1 to M as line items usually refer to 1 order only (this can done in BD).
Last edited by tamcind; 04-09-13 at 22:07.
Reason: Add info.