This can be solved using the Custom Script Assistant in WebEasy Professional, as follows:

1) Select the embedded object that you have the video attached to.
2) Go to the "Tools" menu and select "Custom Script Assistant".
3) Select the "Object Events" button.
4) Enter the following code in the "Contents" box:


5) Click OK.

When you preview your site now, you should see the video and it should start playing automatically.