Page header and related posts in custom post type template

Hi,

I’m currently trying to improve the look and function of this website (with the OceanWP Theme) by using custom post types and custom fields.
To do this, I used CPT UI, ACF and Anywhere Elementor Pro for the Template of the new post Types.

My Problem is, that after building the Template with Anywhere Elementor and setting it as global for my post type “Institutionen”, the layout of this post type was missing the OceanWP standart-modules of page header and related posts, which I really liked and would very much want to implement into the new template.

After weeks of searching for solutions without success, I decided to ask for it myself.
Is there any possible way to include the OceanWP page header and the related posts to my Template? Although I’m new to coding, I’m not opposed to working with the .php files in order to solve the issue.

Thank you very much for trying to help.

The page I need help with: [log in to see the link]