Hi Ketan,
Latest posts on your screenshot refers to an RSS block, not to marketing spots. When you turn editing on on the front page, you can add RSS blocks and configure them on this page for the region Homepage Middle.
Marketing spots are on the right side with the heading iMoot at a glance. 70+ speakers is a marketing spot for example. You can configure these marketing spots within the theme elegance.
With kind regards,
Hartmut