When creating courses, there are six available lesson types that you can create.
Text: Add Text field is required for this lesson type.
Audio: Audio upload is required for this lesson type.
Video: Video upload is required for this lesson type.
Web video: Video URL (from Youtube, Vimeo, Wista) is required for this lesson type.
Embed code: Embed code is required for this lesson type.
.PDF: PDF upload is required for this lesson type.
