I can’t believe that I didn’t know this until Mike told me about it today. If you are in the union catalog and want to see on one page all the libraries that have a title and what the availability status is at each school, you can do it by clicking the “Check location” link at the top of the record (as opposed to clicking on the name of each school at the bottom of the record).
Here is a screenshot of where to click:
And here is what the screen looks like when you click on “Check location”:
