You may include videos either in HTML / HTML5 documents or create as independent items and share it to users.
Edoola though is not a video hosting platform. Videos that are to be shared through Edoola need to be hosted in sites like Vimeo, Youtube etc. You may keep them private and just provide the embed link here. Edoola will stream the video. Vimeo gives you refined security controls like setting a password, whether downloading is allowed or not, choosing which web domain the video can be embedded in etc.
The storage space provided in the Pro and Premium plans are for the Assessments, documents, presentations etc. Video files if uploaded will be rejected by the system.