When you import a video as a WordPress post, Video Hub can also import its thumbnail and set it as the post’s featured image — giving you a complete post with everything in place. To turn this on at import time, see Image import options.
Bulk importing images
You can also import thumbnails in bulk and set them as featured images for any “video” or “post” entries Video Hub created.

Use the WordPress bulk actions and choose Import thumbnails. Video Hub processes them in the background and lets you know when it’s done — it works just like any other WordPress bulk action.
Importing or updating a single post’s featured image
You can also set the YouTube thumbnail as the featured image for an individual post, straight from its edit screen.

In the Featured image panel you’ll find a new Import YouTube thumbnail button. Click it and Video Hub fetches the current video’s thumbnail and sets it as the post’s featured image.