Hello,
Please Read Documentation about Home Page Blocks: http://docs.themepacific.com/bfastmag-pro/#page-home-block
Adding the Widgets in (Featured Blocks,Home Blocks, Featured Blocks Bottom) will remove those sections. Otherwise, Just tick the Checkbox in (Use a different custom Page template as frontpage?) to choose PageBuilder which will compeletely remove all blocks.
You can create Home Pages from Pages > Add New > Enable Page Builder.
The Background Button issue in the menu for Page menus has been fixed. Please Download and Install the New version 1.5.1.
Thanks