Hiding a Menu Item in Joomla!
Ever wanted to use a menu item to link to a particular article or component, but don’t actually what that menu item to appear on your site?
First, create a new menu from the Menu Manager in your Joomla! Administrator area and call it something like ‘hiddenmenu’.
Now proceed to add new menu items to this ‘hiddenmenu’ and be sure they are Published. You will likely want them to be publicly accessible too. This allows you to set menu specific parameters for items like content articles, contacts, components and more, without actually showing the menu item on your website.
Basically, that’s it. Using the JCE editor for Joomla!, edit or create an article. To add a link to the ‘hiddenmenu’, select the text to link and click the ‘Add Link’ button. The JCE editor will popup a window allowing you to select an item to link to. Select the ‘Menu’ option to display the available menus. Then, expand the one you created earlier called ‘hiddenmenu’. Finally, select the menu item you created and click on the Insert button.
Save your article and take a look.

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