Ability to see more information when browsing Subjects in the staff interface

I am submitting the following on behalf of one of our customers: As an archivist, I would like to be able to set browse/search columns for Subjects to have the same capability I have with Agents. When I browse Agents after importing from a spreadsheet, I can easily see if there are any agents that need to be updated after import. This is not easy to do with Subjects. Being able to browse the source (like with Agents) would make it easier for me to identify any issues that arise from importing from a spreadsheet.