-sort_options array *Note 6* List of supported sort criteria. Each element of the list is itself a two-element list:
- the first element of each sublist is a pazpar2 sort-expression such as `data:0` and
- the second is a human-readable label such as `newest`.
+show_lang bool true Indicates whether or not to display the language menu.
+
+show_perpage bool true Indicates whether or not to display the perpage menu.
+
+show_sort bool true Indicates whether or not to display the sort menu.