Mobile hamburger menu

Hi,

1. How can I move the hamburger menu to the top right as part of the sticky header? It's currently on the bottom right on a mobile device.
2. How do you add the call to action button on the home page? I see the buttons for the Scapeshot light theme but it wasn't on the free theme demo.
3. Is it possible for the sticky header to load only after scrolling starts? I want to keep the landing page as clean as possible.

Thank you so much for helping! Happy holidays