Ability to quickly add items to custom post type
Is there the ability to quickly add items to a custom post type in WordPress? I want to be able to add multiple short items (client id, article, id, price) to a custom post type at once, like the function of the ACF Repeater fields.
So basically a "+" button underneath these 3 fields to add another set of 3 fields so you can add multiple products at the same time. Is there a plugin for this or any other option?
As long as your custom post type supports custom fields this is build into wordpress. In your post edit screen click the 'Screen Options' tab in the top right under the 'Howdy' menu. Check the 'Custom Fields' checkbox and you'll see a new meta box below the post body.