Is there a way to test volumetric clouds in world editor the same way as you can for layered clouds, such as setting the required textures, colours and density?

This would be quite useful to try and obtain the right look and feel quickly.

Yeah, this would be useful but I ended up just having a separate project dedicated to the Volumetric Cloud Generation example in the Tutorials for cloud tweaking as it's not really needed too often in my projects.

no, editor supports only layered clouds

Is there any chance that this is something that could be added in the future?