.. include:: /Includes.rst.txt ============ Introduction ============ The ['types'] system is powerful and allows differently shaped editing forms re-using fields, having own fields for specific forms and arranging fields differently on top of a single database table. The `tt_content` with all its different content elements is a good example on what can be done with ['types']. The basic ['types'] structure looks like this: .. code-block:: php 'types' => [ '0' => [ 'showitem' => 'aField, anotherField', ], 'anotherType' => [ 'showitem' => 'aField, aDifferentField', ], ], So, the basic array has a key field with type names (here '0', and 'anotherType'), with a series of possible properties each, most importantly the :ref:`showitem ` property.