Use this editor if you wish to create/edit a data set that defines a paper format (page size, page-related extra space, trim). This is saved in the "Page and Paper Sizes" resource.
Loading the 'Page and Paper Sizes' Resource to the Job
This is where you load the "Page and Paper Sizes" resource to the job:
•"Master Pages" step and "Select page size from the resources..."
•"Contents" step in the Document Inspector and select "Page" tab.
Select the "Select page size for trim box from the resources..." button.