Iframe on Tab in top Home Assistant

It would be nice that it is posible to use Panel_Iframe on a tab in de top of Home assitant.
Not online on the left menu, this is normaly closed.

A tab directly to a Iframe page would me nice to use.

test:
  view: yes
  icon: 'mdi:car'
  name: test
  entities: 
    - Panel_iframe.parkeren