Having Problems Editing Metadata in Bridge

I’m having a problem editing the Document Title metadata in my Photoshop psd file, so I decided to try  it in Bridge. I’m not familiar with Bridge, and I’m having a problem figuring out how to actually edit the metadata. I would appreciate it if someone could help me. 

I can get to the metadata pane of my file in Bridge. But I can’t seem to find a way to actually see the data in the document title field or edit it. Here’s a screenshot of what I am seeing. I see the field to edit, but I can’t seem to figure out how to edit it. Nothing I click on seems to bring up the area I can edit. Can someone help me out here? Thanks.

Jeff