Hi, I'm still relatively new to the world of Mac, so pardon my ignorance. I have a USB drive that I can see all the files when I plug it into my PC because in Folder Options I have "Show Hidden Files, Folders or Drivers" activated. Is there a way to have something similar on the Mac El Capitan? I'd like to be able to see all the cache and any hidden files on the USB when I plug it in the Mac as well, but I'd like to be able to turn this off and on. Nothing permanent. Thanks for your help. Just to add: I downloaded Tinker Tool and checked "Show Hidden and System Files" and I still can't see it.