Thanks Kate:
After multiple tries asking this question through geonet I finally had found someone who noted that I needed do this through 'my content'. I was completely unclear to me from the other entries how to make the choices for Access appear, and even from that it was really just by poking around that I realized that if I checked the box by the file the 'share' option with access etc appeared!
Anyway, this is helpful and the problem resolved. Thanks so much for getting back to me.
Paula
Paula Kay Lazrus, Ph.D.
Associate Professor
Institute for Core Studies
St. John's University
St. John's Hall B3a-1
8000 Utopia Parkway
Queens, NY 11439
718-990-2685