Have you clicked on the POSITIONS button in SEBLOD? It shows you a number of positions where you can place your field content on the frontend.
Just place the fields in the various positions and you have your layout. Variations can also be used to modify the output of fields (borders, padding and more).
The content layout in Form & Content Type is for an individual content item. List Search Types are for displaying more than one content item (you can link a menu to a single article - one Seblod content item or to a list/search type, for example).