How To Build a Progressive Proof

Open the Workbench application.
Select Pagesetup in the Workbench datatypes list.
Choose an existing Pagesetup to edit or create a new one.
Go to the ColourKeys panel.
Select the first plate you wish to have in the progressive, for example, Cyan.
Click the Add 1 Plate button to copy the plate into the plate combinations list.
Click the Progressive button to add the first plate and next plate in the list as a merged job.
Repeat to continue adding the next plate in the list for whatever is required.

Progressive Proof