Full Site View Responsive Muse theme

Hello!

I was hoping someone would be able to help me with putting a full site option on the mobile version on a site that uses this theme: MUSE . I have contacted the theme developer and they aren’t the best at getting back. The site is agamberg.com/kocheda. I like the mobile version but know some people prefer being able to see the whole site no matter how it may look.

Any advice/help would be greatly appreciated!
Thanks