World Base XT and reality question

Decoyboy

I am working on a scene using the new Worldbase XT and using reality 2.5, and my question is, how do i light the scene so that the sky dome and background show up? I set up my own lights (included some to light up the background/sky) and used the preset lights that came with XT, but the background is always dark. can anyone help? using studio 4.5.

Thank you.