Step1: Get into the Builder and you will see a toolbar at the left corner of your page.
Step2: Tap on the block to which you want to add the video. After then, click on the tool reading 'VIDEO' as shown in the image below. With this, a demo video will be added to your page
Step3: Click on the video and a toolbar will appear at the right side of your page to manage its settings.
Step4: The Second tool of this toolbar reads 'SETTINGS'. Click to it and enter the URL of the video which you want to insert.
Step5: Click 'UPDATE SETTINGS'