Dear Gurus,
this is a generic question applicable to any report actually. I would like to fill more entries into select-options through URL parameters, when launching a transaction through WebGUI.
This time select-option is MATNR, transaction is MB52.

There are plenty of posts about this topic, but not exactly the same. I went through the good wiki page
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=22375.
There are lot of features about parameter handover described, but not when we want to fill in more records as select-options. I'm affraid, that since the select-options is a separate dialog, we will not be able to do such. I trial first in SAP GUII as suggested, but I was not able to make any success.
/n*MB52 MATNR-LOW=1234;MATNR-LOW=5678
No automatic iteration of URL parameters into select-options were done.
I know it might possible extracting URL parameters using SAP Screen personas script and inserting, but If we can solve it by built-in features of WebGUI, it would be great.
Thank you
Attila