This is a new feature in Production Manager allowing a multi-layer pdf to be split into multiple pages (one page per layer).
Split job by layers
After adding a pdf job, if it has multiple layers, right clicking the job will include an option to “Split job by layers.”
Upon selection, a popup dialog shows a list of all the layers in the job and allows the user to select which layers should be printed, and if spot colors are present, if they should print as standard color or spot color.
The print job is then converted into a Layer job.