View counter for each user role

There’s no direct way to do it but this can be achieved using two queries.

1. Get the user ids of a specific role by get_users() function and ‘role__in’ parameter https://codex.wordpress.org/Function_Reference/get_users
2. Then use the user ids you got to run a WP Query https://codex.wordpress.org/Class_Reference/WP_Query – here set the ‘author__in’ parameter with the user ids (to get posts of specific user roles) and set ‘orderby’ parameter to ‘post_views’ (to get post views data along with other post data).
3. In result PVC will extend the WP Query data with ‘total_views’ property giving you a sum of all the views of the posts found in the WP Query call.