You can only share files if you uploaded the file or you are an admin.  This can only be done from the website.

  • Go to Collaborate
  • RIGHT click on the file or folder you want to share
  • Click Share
  • Type in the group you want to share with or click view roster
  • Make sure the proper groups are listed
  • Click Done

Now your members will either see them in the Shared with me link on the website or the Documents link on the app.