The second way to add a video to an article is inserting an embed code. First, copy the embed video code on YouTube or another portal, then, click  and choose Embed.

Next, insert an embed link or iframe code and press Enter on the keyboard. 

The clip will be added to the longread.

Change the video size and position in respect to the text and other elements of the article. Just click on the clip and choose the way it will be displayed in the longread,

Optionally, you can write a caption to the video. To do this, click below the clipand enter the text.