Randomize File Chosen From List

I know that I can select to present a file chosen from a list. Is there a way for superlab to randomly pick one of those files rather than just the first one?

To be more clear, I have feedback given to participants, and I have 3 images in a list under 1 event. I want Superlab to select, randomly, one of those images to display.

It can be done if you are presenting a regular trial, but not with using feedback.