Panel is not showing in different pages. It is showing only in one page

I am trying to add panel in different pages. But its not working. I want to add panel in two different html screens. The panel which is showing that I have added in index.html page. If I want to add another panel in different html page then its not showing.

Can we add panel in other pages to. In documentation it is written that panel should be added in app root folder. But I need to use different types of panel for different screens. How to achieve that ?