1. Unfortunately at the moment, we don’t have those kind of option especially on mobile menu.
2. Can you provide me those page url, so i can easily to know the possibilities.
3. Actually at the moment, we don’t have those kind of feature. But if you interest, you can use Portfolio item with Extended Portfolio layout like this : http://jkreativ.jegtheme.com/flat/portfolio/sweet-metro-style-ui/