Once you have signed up for a graphics package (Basic or Advanced), you can add it to your stream - or choose to not stream with graphics - by using the toggle switch on the dashboard, for the unit in question:
When the switch is on, that stream will have graphics. When the switch is off, you are choosing to send that stream with no graphics.
If the destination is the type where you enter some destination data for each stream, for example Facebook and the title of the post, you will be prompted each time for which saved Playlist to use, or which Composition to start from.
If You Use a Destination Type That You Don't Need to Always Make a New Post
Such as Generic, UStream, Akamai and others, you do need to one time go through and select that saved destination again, so that you can setup your unit to use that destination + graphics.