change attributes (visible) for all files in a folder (and even deeper would be nice)

[phillman5]

I confess I am completely new to QS, I did look at the manual, and
searched the forum first.  I have folder full of folders, but only two
deep, but all files at the second level are invisible.  I see QS can
make a file visible, any way to have it make all files within the
folders at the second level visible?

folder A
   folder 1
        file 1
        file 2
   folder 2
        file 1
folder B
   folder 1
        file 1
        file 2
   folder 2
        file 1

any other suggestion would be appreciated