Timer needed to call a event after a specific time

Hi mates,
My problem is, i need to call an action after a specific time in a scene. when the scene starts, I want to play a video after 20 seconds

2-) is there also an option for call an action when a sound comes to end.

Thank you

1. Create a value, starting with 0.
2. Create an action "called by other action": If value < 20 set value+ 1, stop 1 sec, jump to action part 1 else end action. You can call the action at the beginning of the scene or whenever you want your countdown to start.

To your second question i really dont know, sorry.

Hey mate it worked great!!! Thank you so much ??