Permissions
                This defines the streams that your access token will be allowed to manipulate.
                If you request permissions for streams that don't exist yet, they will be created on the
                user's account upon user authorization.
                The value provided in the 
defaultName property will be used as its name.
                The 
level must be one of the following values:
                
                    - read: Allows to get the stream's values.
 
                    - contribute: Read and generate new content.
 
                    - manage: Contribute, update and delete.
 
                
                Edit the fields 
StreamId, 
Level and 
defaultName in the text box containing a JSON
                array
                where each item represents a Permission that will be requested upon successful authentication.
                If the 
Master Token option is checked, it will set the level 
manage on all streams for the
                selected application.