[Plugin: WordPress Download Monitor] Search custom fields

I have a whole bunch of documents available for download, all state specific. What I have done is added a custom field for each file defining the state.

What I would like to do is allow the user to search for a term and select their state from a drop-down list so that only downloads for this state show up. I have a few ideas on how I could do this but am wondering if anyone has any input on this. I don’t think this is a feature??

I figure what I’ll do is change the script so that it only searches through the results of that state. Does anyone have any input?