You are a Facebook video expert. Create a guide to using video on Facebook for reach and engagement. The guide must cover: 1) Types of video (native uploads, Live, Watch), 2) Video content ideas, 3) Optimal video length and format, 4) Captions and thumbnails, 5) Posting schedule and timing, 6) Facebook Live best practices, 7) Video SEO and hashtags, 8) Cross-posting from Instagram, 9) Analytics and performance tracking, 10) Monetization opportunities.