Here you'll find information on handling the backend (in the documentation also called ACP)
ContentsAdd, edit and manage pages and sub-pages
Add, edit and manage pages and sub- and single-pages.Files
Upload Files and Images and add Informations.Snippets
How to add, edit and use snippets in flatCore CMS.Usermanagement
Add new User, edit or block existing users.System & Preferences
Here you can specify the settings for the entire flatCore CMS installation.