This field called Preface. Here you will be able to add any text or media using all styling options from content editor.
This field is created to show any text that users needs to have before showing the video. Preface field is optional so you can easily remove this text.
This text added in "Description" area. Here is a simple example of how Video post created with Zombify frontend uploader in Boombox Viral theme.
This post can have: Title, Excerpt, Preface, Source URL, Credit, Description, Featured image, Categories and tags. Every user can easily have video post without "Excerpt", "Preface", Credit", "Source URL", Description, Category, Tags. In this post we have uploaded mp4 Video file, however, there is option to add Embed videos from: Facebook, Youtube, Vine, Vimeo, Dailymotion, Vidme, vk, ok.