edin theme: content option missing on www.remarpro.com

Hello, I am using the EDIN Theme for a great site which I want to create for displaying great artworks. I am missing the option CONTENT OPTIONS, which was available while having the site as a test on wordpress.com.
I need this option, because I want to hide the feature image on the posts. I have to add a feature image because I want to use the blog on the static front page and it should display a picture.
1. How can I hide feature images on the blog posts ?
2. I also need to display only one blog post on the front page, but 10 on the blog site. How could I do that ?