Creating, Opening, and Saving Print Sets
If you are going to print the same set of files on a regular basis (for example, at different milestones throughout the life of a project), you can save the set of files as a print set (.pset) file. A print set is used to identify, save, recall, and print a particular set of files and models.
You can open multiple instances of the same print set file, but only the first instance has write access. Subsequent instances of the print set will open in read-only mode. Read-only mode allows you to preview and print the files, but if you make changes you will need to save the print set with a different name.