Custom Text block on every view-page

Hello,

I am looking for a way to put a custom text-blok in every view-page/tab.

The major goal for that is to explain the input_select options and other buttons and sliders.

It looks a little like the Welcome Home screen on the home-screen of HomeAssistant but in fact it is possibility to put text on a view/tab like on the configuration screen.
"
Configure Home Assistant
Here it is possible to configure your components and Home Assistant. Not everything is possible to configure from the UI yet, but we’re working on it.
"

Is this possible in HA and how to fix that?