Step 2: pause (space) and click every player in the play
Video keys (VLC): Space play/pause, Shift+arrows 1 s, E or arrows one frame, [ ] or - + speed, M mute
Each clip runs from the zone entry to the shot. Every tracked player has a thin grey box. Step 1: type how many attackers (1-5) then how many defenders (1-5) are in the play. Step 2: pause (space) and click every player in the play. Video keys as in VLC: Space play/pause, Shift+arrows jump 1 s, E or the arrows one frame, [ and ] (or - and +) slower/faster, M mute; the buttons under the video do the same. A clicked player turns yellow (attackers' kit) or blue (the other team); click again to undo. Next stays off until you have clicked at least one player. Players with no box were missed by the tracker: count them in Step 1. Your answers are saved in this browser; "Copy answers" exports them.
Kits first. Press K any time to see this again.