Query Parameters in Open Report action

Query Parameters in Open Report action

Hi,

I need to pass a query parameter in an Open Report action on a dashboard page I'm building but I can only get the "=" operator to work:  fdClosedState=No.  I need to have more complex queries passed to a few reports using the same layout but I can't seem to get any others to work with any other operators except for =. I know I can duplicate the reports and apply individual filter sets to each, or add fields to my database that when calculated will give me a value I can use in an 'equals' sense to get around this but it seems like a clunky and poor db design workaround. Can anyone tell me if it's possible to use other operators (!=, >, && etc) for this particular application and if so, what is the correct syntax for them?

Cheers,

Rob