Changing standard program for PO script--

Hi Guys,

I changed sapfm06p to zsapfm06p and changed the function group to zmedruck, till now every thing is fine.

now the actual problem is want to print a box after printing all items,at the end of last page.Ofcourse I might have done this by placing a window at end and give a condition to check last page or not.But it doesn't suit my requirement.

So I want to print from main window, i.e at the end in main window on last page.

So now I want to insert some code in Main program in FM : Zme_print_PO ,as there are so many includes in it, I just want to know what will be exact include to change for my requirement.

My question again in brief.. as I want to print some thing at end of main window in last page after all the texts,which Inculde in Zme_print_po will be apt to add my code,

Thanks