i created a character I want to fall from the top so that he dies. so how can i do it?
You can do it with simple search.
Usually falling damage is handled either through configuring the Z Kill value, so that every actor that crosses that Z value dies. If you want more precision you can create your custom Death Triggers, where you have actors with a box collision that is placed in the level, so that when you overlap with them you tell the character to die.
Do you have any youtube tutorial? I can’t understand how can I do it