All FPV Camera and FPV Booster apps contain comprehensive documentation in Help > Features and FAQ sections of each topic as shown below. FAQ section of Mission Planner also includes video tutorials. You are recommended to read through the whole documentation and watch video tutorials. We keeps reviewing and updating online help and tutorials regularly.
Mission Planner also includes a context sensitive online help. Tap "?" icon would show up a context sensitive online help based on current step, if there is internet connection and not flying. It helps you to learn the particular step/topic easier without searching the whole document or user manual. We keeps reviewing and updating online help regularly.