Move Social Icons in Main Nav to the right of menu, under site title. 7.1

Hello!

I am trying to move the social links (in this case just one instagram icon) to the right of the main menu under the site title. 

(As pictured where the arrow points). 

I have tried all the code I have found in the forum and am having no luck. 

I'm in 7.1, using the last header layout option, and we're on a business plan so code injection OK. 

I pitched a design with the menu and social on the right hand side (per the second image), and the client wanted to move it under, which looks great, but I can't figure it out and i'm losing my mind. 

Help please!

Hello!

Just coming back to say i got there in the end with some help from 

https://bamn.digital/blog-squarespace-web-design-css/add-custom-icons-to-squarespace-navigation

and 

https://bamn.digital/blog-squarespace-web-design-css/adding-font-awesome-to-your-squarespace-website

thanks to @JamesBros

I'm experiencing this issue as well. A year later and the thumbnail in the settings doesn't match the layout we're given. I'd like to see an option for the social buttons to the right of Logo and Site Buttons.