happy new year to you, and we’re sorry that we missed your original topic, occasionally they slip through our help desk, if you don’t hear back within 24hrs then please don’t hesitate to chase us.
Do you have a site setup where you would like to create that layout ?
If you set the navigation location tofloat right at customizer > layout > navigation, it should basically show the left 2 columns correctly.
Then you can go to appearance > elements, create a new block element, add a GB buttons block, choose menu_bar_item as hook name, and chooseentire site as the location.