A score is an action by a player and/or team. So it needs to connected to either one. You have to add the score tag on the Analysis dashboard with the appropiate points for the score as a part of the info of this tag-type.
If you have not used it during the initial project analysis then you need to add the score tag through the window of opened project>> where the analysis dashboard is shown at the right hand bottom side (here you can modify the specific dashboard for only this project. And consequently add the scores as tags to the timeline and tag list, as separate events of the game. And ultimately change your existing analysis dashboard for further use with analysis. For adding tag buttons to analysis dashboards, see the manual.