hide and display the specific fields you want to show.
using this approach could get you what you needed, but it does require an additional column in each library. you could use content types to hide and display the columns, but that adds another level of management. i am not sure if that would be a good solution for all cases, but i did want to put it out there as a way to complete the request. i am sure there are other ways as well to complete the same task. 