Hi,

The function shown below can be used to hide menus on websites:

    def _compute_visible(self):

        super()._compute_visible()

        self.env.registry.clear_cache('templates')

        for menu in self:

            visible = True

            if menu.name == 'Events':  # Assuming 'Events' is the name of your events page menu

                if self.env.user.has_group('base.group_portal') or not self.env.user.share:

                    visible = False

            menu.is_visible = visible

Hope it helps