It could not be found in the preferences.
https://dev.epicgames.com/documentation/unreal-engine/unreal-engine-5-8-release-notes#shortcutmanager
Hello @Jason.Zoe ,Welcome to the forums!
In UE 5.8, you can access the Keyboard Shortcuts by going to Edit - Keyboard Shortcuts, as shown in the screenshot. Alternatively, you can use the shortcut Ctrl + Alt + K to open it directly.
Hope it helps!
