@Angelos this feature is still in development. Here's a peek behind the curtain. As you can see from the animation above the rendering on the right side needs to be "crisper" in order for the feature to be usable. Quick update below on what the future holds:
The feature is still in development and testing. We need to make some performance improvements and usability improvements before we can launch it. This feature is in active development but as you can imagine it's a non trivial feature.