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-rw-r--r--modules/system/system.api.php4
1 files changed, 4 insertions, 0 deletions
diff --git a/modules/system/system.api.php b/modules/system/system.api.php
index 4391c27..802f470 100644
--- a/modules/system/system.api.php
+++ b/modules/system/system.api.php
@@ -1201,6 +1201,10 @@ function hook_menu_get_item_alter(&$router_item, $path, $original_map) {
* same weight are ordered alphabetically.
* - "menu_name": Optional. Set this to a custom menu if you don't want your
* item to be placed in Navigation.
+ * - "expanded": Optional. If set to TRUE, and if a menu link is provided for
+ * this menu item (as a result of other properties), then the menu link is
+ * always expanded, equivalent to its 'always expanded' checkbox being set
+ * in the UI.
* - "context": (optional) Defines the context a tab may appear in. By
* default, all tabs are only displayed as local tasks when being rendered
* in a page context. All tabs that should be accessible as contextual links