First time working on Smart Forms. Current requirement to develop s Invoice form. So i have decided to copy LB_BIL_INVOICE. My question is I have 4-5 types of invoice. I mean Body/columns changes for few types of invoice. Header and total/sub total remains same. Do I create separate forms for all different (5) invoices or is there way I can just control main window/column details just by invoice type. Thanks in advance and any direction will be appreciated. Please let me know the ways to test current standard form (LB_BIL_INVOICE).