How to stop a playing level sequence and how do i know a level sequence has finished?

I tried stop node but the sound track was still playing and dislike matinee the camera didnt came back to my player character just freezed there.
Do i need to possess back to player character manually?

And how do i know a level sequence has finished itself so i can restore my UI and do something else?

Apologize for my English,wish you guys understand what i mean, and thanks in advance for any reply.

For now my solution is : instead of using sound track i put an AmbientSound actor in the level so i can control its play and stop,and after stop sequence playing i add a possess node back the control to my player character.for the last question,i add an event track keyframe just before the sequence’s end point.

i know it looks stupid,i wish i can find a better solution.

Could you show the Blueprint where you are trying to access certain things?