Church Community Builder Forms
You can get to these settings by going to Appearance > Customize from your WordPress Dashboard and clicking on the CCBPress panel or by going to CCBPress > Getting Started and clicking on the "Go to the Customizer" button.
Unfortunately, it's not yet possible to embed native Church Community Builder forms into a website. The next best thing is to open them in a Lightbox.
This option allows Registration Form links to open in a lightbox rather than as their own page. It works by taking advantage of a pre-installed lightbox plugin and adding the appropriate tags to each link in order to trigger the lightbox.
This setting currently only work with the Easy Fancybox plugin.