If anyone wants to skip reading the documentation, here is how it’s done.
On the “video” tab, click on “Add video files” and select your video. Take note of the ID assigned to the video file. (The first video will be “V1”, the second will be “V2” and so forth
In your Word document, insert the code VIDEO:V1 where you want your video to appear (no spaces)
Then add any text you wish to appear either above or below the video (ie. “Here is a cute cat video”
Save your Word document.
That’s it! - But I would really encourage you to read the documentation!!! It goes into more detail, while keeping it simple.