MIR7 - paste more then 8 purchase orders one time ?

In our company,we have developed a report by ABAP which show all the purchase orders which

have not been park incoming invoice (TCODE:MIR7) , and export these purchase orders in the

report to the EXCEL files.

After we check those purchase orders in the EXCEL files ,we will do the park incoming invoice in MIR7. And when doing MIR7 ,in the Reference to Purchase Orders window,we will paste the purchase orders from the EXCEL , but we only can paste 8 purchase orders once a time ,and then use page down to paste the other 8 purchase orders. We have many purchase orders to do park incoming invoice MIR7, so this is very large workload to paste only 8 purchase orders once a time for totaly more then 300 purchase orders！

So I want to ask ,when doing MIR7 ,in the the Reference to Purchase Orders windows ,how can we paste more then 8 purchase orders once a time?

By some ABAP development? Are there any user exit fit this?

Or are there any other third party software can help do this?

Thanks for any reply!

Edited by: Fei Liu on Mar 22, 2009 4:51 AM