On Page Builder Layouts

I seem to have misplaced the posts page that came with my theme (boss.), and I’m trying to figure out a suitable page layout for posts, the boss. one wasnt a great fit anyway. I stumbled upon the Page Builder Layouts and didn’t seem to find a great fit on there but noticed the tab for importing and exporting page builder layouts, however I can’t seem to find any locations where additional layouts might be available. Any ideas from yall?

– Andrew