Are there any ideas on how to use the Beaver Builder Plugin on custom post type archive and single pages?
You can enable it for single CPT pages by going to wp-admin > Settings > Page Builder > Post Types
Currently you cannot turn on BB for archive pages, a work-around would be to create a new page and use the posts module to feed in the post. Unfortunately this isn’t ideal when dealing with categories, tags etc.
Ok, but if I enable it for my CPT and build a page layout for a single post, will this layout then be available for all CPTs of this type or only for this specific post I’ve builded the page for?
Only for the specific post. The ability to have linked templates or layouts is at the top of our feature list at the moment though so it will be something we look into implementing this year.