Cloning Website Layout

So I used a premade theme for my website, and 90% of it is mobile optimised, but there are certain aspects that are not, I need to make a new layout for mobile and tablet resolutions, but wanted to clone the layout from my main website so that I could easily transfer over the 90% that works, then amend the 10% that is poorly optimised for example the logo that is far too big on mobiles.

How can I do this? I've attached a photo explaining what I mean. I'd like to clone everything in main to mobile.



On the top part of the page click on the Gear icon and export layout.

Then import it back and in the opened popup window select the "Create new layout" option

Separate layout for mobile devices can be set up with our addon