Hey Kathryn,
Thanks for reaching out!
You can generally apply content restriction with that plugin by adding the [restrict] shortcode above content you want to restrict….
We do not make that plugin, so you will have to seek further assistance from that plugin’s documentation and support teams.
You can find some basic documentation here → http://docs.pippinsplugins.com/category/38-shortcodes
You can find their free support forums here → https://wordpress.org/support/plugin/restrict-content
And you can find the premium site, with its own support resources, here → restrictcontentpro.com
Best of luck with your project!
George