If you know how the footings are commonly set up and poured in your area then design your own. Draw a footing in a plan and take a cross section of it, use the cad tools to add more detail like dirt, footing boards, rebar ect... It should not take more than ten or fifteen minutes depending on how well you can operate Chief. If you do not have a clear understanding of how to create one then visit a job site and take a look at how its done and ask questions. Take lots of photos so you do not have to rely on your memory.
Hope this helps.