Open Access Publishing support is available, including waivers for article processing charges (APCs).
For questions about OA support, contact OAFunding@ceu.edu.
One way to retain rights to your own work is to request that your publisher accept more favorable conditions by using an author addenda, instead of simply accepting the license presented to you once your article has been accepted.
Remember that publishers need your content and it is reasonable to retain the rights to your own publications so that you don't have to request permission to use your own work in another way, including the right to deposit in an OA repository or in a digital course pack.