blackbird mobile – limit what content shows?

Hi All,

I was wondering if there is a way for me to limit the amount of content which displays on mobile?

I really only just want logo and main menu.

I want to remove the following from displaying:
* Home Top Feature Image
* First, Second and Third Feature Headings
* First, Second and Third Footer widget areas

Also, how can i get mobile menu to expand “main menu items” only (not sub) upon load?

Thanks ??
Dee