Hi Carlton,
Are you using the Maximus page builder? If yes, you can load the layout/demo content from pages->Add New and on the new page load from library->Modern Community.
Then you can set this page as home page.
Also, please do this for customizing single page
https://buddydev.com/docs/guides/community-builder/getting-started/customizing-singular-wordpress-site-page-community-builder/

Please do note that we are about to release Community Builder 2.0 next week and breaking away from the Maximus Page builder/1.0 look and feel.

So, if you are building a new site which can wait for a week, I will suggest to wait before getting locked in with Maximus.

Thank you
Brajesh