Strange, but for the first time I found that Media Manager is offering the feature to embed a video immediately by pasting the URL(Great Feature 🙂 )
Unfortunately, I can't find anywhere when I can set up the video size(width & height), but it looks that a size 480px is placed on every video
Also, it seems that the fields in Media Manager are not offering the ability to set the video size in % because in my case I want to set the width 100% as a default size for every video that is being inserted from Media Manager.
Thank you in advance!