Top-level objects 

As described in the TypoScript syntax introduction TypoScript templates are converted into a multidimensional PHP array. You can view this in the TypoScript object browser. Top level objects are located on the top level. Top level objects are for example config or plugin.

• Some have an explicit object type, such as PAGE for page or CONFIG for config, some may be filled arbitrarily by extensions.
• Some of these are already initialized by TYPO3, such as config or plugin, some must be initialized explicitly, such as page.