How do I change the keys bindings from the editor?

I want to change the Key to exit the Gameplay. Thanks for Answers.

Go to Edit->Editor Preferences->Keyboard Shortcuts. See Keybindings Editor documentation for details.

Do you Know where there i can change the Button to Quit the Gameplay?(Default Escape)

You’re looking for the key PlayWorld (PIE/SIE) → Stop

I have now set a key(shift+Escape). But if I now press Escape to the game ends still.