Vaadin Navigator in application header

Is it possible to tell Vaadin Menu to always be sticky to application header ?

I need my application menu (from Vaadin Valo Demo app) to be in the following state:




25831.png

It should be enough to set “position: fixed;” in (S)CSS for the menu component. Then one might need to experiment with z-index to ensure that the menu is always on top of the components.