It would be great if there were a simple option in the plugin settings for a ‘Clear cache’ button to display in the WP admin bar for users of specified roles (checkboxes).
Currently this requires an user role configuration plugin or custom function as described is this article: https://docs.wp-rocket.me/article/1280-customize-access-to-options-for-user-roles
This should be accompanied by a ‘Preload cache’ button.
For which reason you will need other roles than admin to clear / preload the cache?
For your information, when a post/page/custom post type is added/updated/deleted, the related cache is purged and preloaded.