Problem multiple post loops showing duplicate posts

Hello dear Kriesi Support,

I’m looking for a solution for the following. I have a page that has multiple post loops, (created by blog post element or portfolio grid). Due to the lay-out I’m supposed to build, I need to start with a 1/2 column with posts. Below that is a 1/1, fullwidth column, that should display the rest of the posts.

So basically, I want to start to display the posts in the first column, and continue in the following column.

I think I can solve this by adding 2 ‘blog post’ elements (same category!) in 2 columns, and setting the posts to not duplicate on the same page, but it’s fairly difficult for me to do this with php code. Is there a way to get this done, or is their another option I’m missing? This should be a problem to more users with multiple loops, but I cannot find a fair solution.

This is the code suggestions I found:
http://www.wpbeginner.com/wp-themes/how-to-avoid-duplicate-post-display-with-multiple-loops-in-wordpress/

Thanks so much, Daniël