.. include:: /Includes.rst.txt .. _columns-category-properties-exclusivekeys: ============= exclusiveKeys ============= .. confval:: exclusiveKeys :name: category-exclusiveKeys :Path: $GLOBALS['TCA'][$table]['columns'][$field]['config'] :type: string (list of) :Scope: Display / Proc. :RenderType: all List of keys that exclude any other keys in a select box where multiple items could be selected. See also :ref:`property exclusiveKeys of selectTree `.