AX-EnterprisePortal : Passing parameters to Pages using the QueryString in a Web Menu Item Url

Hi All,

I am trying to give some query string arguments through a WebMenuItemUrl object.

This technet page : http://msdn.microsoft.com/en-us/library/cc568832.aspx mentions that WebMenuItem object must have a parameters proprerty yet i can"t find this property in the UI. 

Has anyone met and maybe found a solution to this problem ?

,Jo