Let's explore how hiding content works. By default, every menu item is visible: the Access level is set to Public. We'll change that setting for the Activities link that's currently shown in Main Menu, as shown in the following screenshot:
Let's make this Activities link visible only for registered users who have logged in. The steps are as follows:
That's it! By changing a single menu item parameter, you've effectively hidden the menu item for nonregistered users. The output is shown in the following screenshot:
The Activities link will only be displayed after a registered user has logged in.