Please find below the replies for each of your individual queries listed below :
but i need to know about the Structured Data > hatom. can this be done on pages not just post .
The issue regarding the hatom in the site is shown by the google webmaster tools due to the missing some required data entities set as required by the webmaster. While the Bizroot Pro theme is coded with best coding practices and optimization, it is not the theme feature to tackle all the hatom errors(if any shown). You can refer to the link below for reference on hatom issues below : http://www.drafie-design.nl/correct-hatom-errors-in-google-webmaster-tools/
Plus how do i add meta to the header
Adding meta tags to the theme is also not a feature included in the theme. As the theme is designed to update pages and posts dynamically within the site, it is however suggested to use plugins like Yoast SEO That helps dynamically edit / modify the header meta for SEO purposes.
i wanna have a background pic in the page but not for the content more for the space down the sides
We are actually having trouble understanding your request correctly, Please explain the request further with some screenshot or Site URL so that we could help you further.
Also, if you are having any further issues regarding theme options please explain the issue specifically and we will definitely help you out.