-[[SubPage]]. In fact, this page, [[plugins/sidebar|plugins/sidebar]], will
-be treated as a sidebar for the [[plugins]] page, and of all of its
-SubPages, if the plugin is enabled.
+[[ikiwiki/SubPage]]. In fact, this page,
+[[plugins/sidebar|plugins/sidebar]], will be treated as a sidebar for the
+[[plugins]] page, and of all of its SubPages, if the plugin is enabled.
+
+There is also a [[ikiwiki/directive/sidebar]] directive that can be used
+to provide a custom sidebar content for a page.