Forum:How do you edit a menu on the expanded wiki navigation?

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I want to add expanded wiki navigation to the wiki I'm at, but I don't know how to edit the menus AT ALL. Can anyone help? MissingNo. here! Talk with me! 18:42, December 10, 2011 (UTC)
 * Mediawiki:Wiki-Navigation. You can only edit them if you're a sysop.-- Kangaroopowah  - Talk  19:23, December 10, 2011 (UTC)
 * Okay, but what do I do now? I clicked create on the page, and it's blank. --MissingNo. here! Talk with me! 17:44, December 11, 2011 (UTC)
 * Try looking this help page: Help:Wiki navigation. But basically, just do a list of links, for example

Yechnagoth 19:06, December 11, 2011 (UTC)
 * link1
 * link2
 * link3