how to see if a reference has a pdf attachment

Hello,

I just finished attaching pdfs to my library. But is there an easier way of checking wheter a reference has a pdf attached to it? I’m using X5 Build 5478 student version and you can check preview the pdf when you click on the reference, but you can’t know if you have an attachment just by looking at the reference list. When I was using an older version, I remeber I used see the paper clip icon when a pdf was attached. Is there an option that I need to turn on? The screenshot is attached.