Here is a video for how the Linkedin Integration works
In order to record, upload or select videos from LinkedIn, you must have the Dubb Chrome Extension.
Visit the messages section of your LinkedIn profile.
There you will notice a Dubb icon on your messages.
This allows you to record, select or upload videos directly from LinkedIn.
Once you add a video, you will be able to paste it directly into a LinkedIn message.
Once you finish adding a photo, you can simple paste the video into a message. Once you do this you will see a thumbnail graphic.