In the editor, you can simply edit a sound and use it as the background music or ability sound. Sounds are grouped based on types. You can view the sound resources in the Resource Manager.
You can set sounds in the Object Editor - Sounds. For example, you can change the sound template, set a sound as 2D Sound or 3D Sound, and set Volume, Fade In, and Fade Out.
[Term] 3D sound: You can set Decay Distance and Mute Distance in addition.