To see the roles your members can have, or the permissions each role has within a collection:  

1. Open your collection
2. Click the Group tab
   • Find Group in the top right corner under the magnifying glass icon

   • The Members tab will open

3. Click Roles (read only) 

   • A table of possible user roles will appear

4. Click view permissions next to a role

   • Tasks available to members with that role will appear