I have added extra fields and categories, but they aren’t visible. What should I do?

New fields aren’t visible by default. You have to add these to your role: go to menu ManagementBase tabelsRoles and click on the role that links to these fields. Click on the newly created options and click on Save. The roles still aren’t visible, because your authorization is determined before you login. Now logout and login to start a new session and the new fields will be available.