Sorry to say. We can't do this because if you have a page that will open through the Szwajcaria menu item and Szwajcaria have sub menu items. We can access the Szwajcaria's sub menu but can't open the Szwajcaria menu item. That is the reason behind this.
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We can't do this because if parent menu item have information then user can't access the parent menu item.
For example. We have a menu item called Page Builder and it's child items are Support, Documentation. Each menu items have information. If we can do as you say. Then we can only access the Support, Documentation page expected Page Builder page.
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