Display metaboxes created with Online Generator

Hi,

I am using the Metabox plugin and MB Custom Post Type plugin and managed to create CPT’s and taxonomies. Now I have created metaboxes with the Meta Box Online Generator to use on the CPT. I can see and use the metaboxes in the backend, but can’t get them displayed. I assume it must be simple, but I am new to this… Any tips?
Would using the Meta Box Builder extension help creating and displaying the meta boxes?

Thanks!
Eva