1) The document provides instructions for using Smartcoach, a software for analyzing soccer matches in real time. It describes how to set up accounts, create custom actions and player profiles, and mark plays as they occur to record statistics and heat maps.
2) Key steps include logging in, creating custom actions like "offensive plays" and individual actions like "shot" or "pass", setting up teams and players, and then clicking on the field to tag plays in real time.
3) Data can be saved locally or synced to the cloud, and statistics are available in real time and can be filtered in various ways to analyze team and player performance.