ryanjon2040 - Thx for the video, but its not what i want actually.
fen - I didnt realize content example have such things inside, but it didnt help much also
because the thing is i don know how to add a streaming level as one of the streaming element into the volume, and this had not taught in content example
But i did find out how to do it.
Just have to summon the level details, choose the streaming level u want to stream with volume.