How To Extend Header And Footer In New Page

Hi Team,

I have one doubt in custom addon because i need to create one new page in cs-cart through custom addon. the page is appear but i unable to extend header and footer in tpl file and here i am shared my new page .

NEW page Screenshots

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I need to create one custom addon in cs-cart , that addon create one new page (which means seperate page ) in cs-cart because it has some new elements but my doubt is how to include header and footer in my new page because my page look like below (no header and footer)

On design -> layouts create new layout page for your custom page, then enable unique header and footer there and disable necessary blocks