Action designed for adding new item to existing items as a child Action designed for updating existing menu items attributes Action designed for removing existing menu item with its children Attribute id is unique under add actions Item id attribute can has only [a-z0-9/_]. Minimal length 3 symbol. Case insensitive. Item action attribute can has only [a-zA-Z0-9/_]. Minimal length 3 symbol Item title attribute minimal length 3 symbol Item module attribute can has only [a-z0-9_]. Minimal length 3 symbol. Case insensitive. Item resource attribute can has only [a-z0-9_]. Minimal length 3 symbol. Case insensitive. Item resource attribute can has only [a-z0-9_]. Minimal length 3 symbol. Case insensitive.