GDF modern menu

Hi,

We have been experimenting with the menus in a GDF child theme to be able to add som elinks to the main menu appearing in the header.
The idea is to add the custom links to the right side of the menu bar but we cannot figure out how to do it through UI. It appears that any links we add will be added to the left of the GD links.

So instead of :

mycustomlink Events Places ADD Listing Change Location

I want to see:

Events Places ADD Listing Change Location mycustomlink

Any suggestions?
Thanks,