That one I’m not sure, but I think you can’t know when an animation is done playing in Matinee. (you can know when matinee is done, but not an animation inside it). You would have to look at the time and create and event accordingly.
For the event I’ll have to look into it a little bit later tonight, last time I used it (4.5.1) I’m pretty sure any event I added to matinee was automatically added in the BP in the Matinee controller but I did a quick test (4.7.3) and it’s not the case.
I’ll let you know when I find out.