Provide Range for Product in Sourcing cockpit

Hi Gurus,

I have below requirement.

Currently system is showing single parameter for product in Search Criteria in Sourcing Cockpit. Now i want to convert it to Ranges.

Can any body guide me.

Currently it is showing as below.

I found below link in which many of the options are seen as Select-Options as compared to Below above screen shot.

http://wiki.scn.sap.com/wiki/display/SRM/Searching+for+requirements+within+the+Sourcing+Cockpit+-+Debug+Hints

Guys i am new to CRM and i have been given only 2 days to complete this task. I am thinking about Enhancing Web Dynpro Component. But thought there might be some configuration.

Please help me guys whether it can be achieved by configuration and if yes then how.

I searched on Google and SCN but i got confused.