How can i pause de render in a layout, is imposible to work with neon in layout?
You can't pause the render if using Neon in a layout detail currently. I'll add it to the list of things to work on though. I'd suggest instead to use ViewCaptureToFile and then PictureFrame to bring the Neon render back into a viewport as a finished image. Then focus on the picture frame image for the detail.
Please use the new forum if you can here as well... http://discourse.mcneel.com/ there is a Neon category too!