How to Activate the Done-For-You Content
Click on Content from the left sidebar.
Under the Available Content Area, use the arrows to search through the content packs.
You also have the option of using the search bar in the upper right hand corner to search for a specific pack.
Once you have found the pack that you would like to use hit the 'Activate Content' button.
You will have the ability to combine content packs together by selecting the 'Add to Existing Content' button.
Once you have Active Content, you will be able to schedule posts from that content bucket.