@Grenouille: Sorry there is no option to make it 2 columns. But we can work on it and it will soon in release in next version update. We are about to release by this weekend. But for now, you can choose 4 columns layout and then add the following css in “Appearance => Customize => Theme Options => Custom CSS Options” box.
#featured-content.layout-four .hentry {
text-align: center;
width: 50%;
}
#featured-content.layout-four .hentry:nth-child(2n+1) {
clear: both;
}
@media screen and (max-width: 480px) {
#featured-content.layout-four .hentry {
width: 100%;
}
}