button in the header

I am trying to get this page together for a great collaboration project I am involved with.
I am a super basic builder… so coding is not my forte at all!!!
What i need is the “Share your story” button, which currently sits at the bottom of the home page to be located ON the header, at the lower right-hand corner.
The other thing I need to fix, is I would like to eliminate the menu bar from the page all together (not sure if this a limitation of the theme I am using, Sydney)
please help! 🙂