How to store photos outside the vault

How do I place my pictures “outside” the Secure Access Vault? Just bought the Extreme Portable SanDisk SSD and placed a lot of jpegs into it - into the vault. . Now I realize I can’t se the tumbnails of each picture - only an icon list. I want to be able to view the thumbnails (icons) so I can work with the pictures. I saw a forum answer about storing the pictures on the drive outside of the vault - but I don’t see how to do that. I’m assuming the SanDisk Extreme has another drive I could place pictures into? If so, how do I access that drive? 

Thanks! John