Just add an event tick in your blueprint + connect it with a branch node + connect a “=” and the point variable to it -> at true you can add the action (e.g print the text, set a bool variable from a bp to true so that the door opens,…) 
Just add an event tick in your blueprint + connect it with a branch node + connect a “=” and the point variable to it -> at true you can add the action (e.g print the text, set a bool variable from a bp to true so that the door opens,…)