1. From the Tools menu, select Automated Page Assignment Editor. 
2. If you want to edit an existing APA file, from the File menu, select Open APA File. In the Open APA File dialog box, browse to and select the APA file that you want to open, and then click Open.
3. In the APA Editor, perform one of the following actions:
   • On the Page Assignments tab, select Page Set Assignment, and add instructions.
     For each instruction, click Add and then type values in each column of the row or accept the default values. For information about the columns, see Automated Page Assignment Editor.
   • Click the Geometry Assignments tab, and add instructions.
     For each instruction, click Add and then type values in each column of the row or accept the default values. For information about the columns, see Automated Page Assignment Editor.
   • If you know and want to use APA file syntax, click the Page Assignments tab. Either enter the syntax directly and the APA Editor will interpret your entries, or type ASSIGN statements directly in the Raw APA File view.
4. From the Edit menu, select Simplify Duplicate Rows.
   The APA Editor removes:
   • Any row that performs the same page assignment as any other row.
   • Any explicit instructions that are covered by new wild card instructions.
5. From the File menu, select Save APA File as.
6. In the Save APA File As dialog box, browse to and select the Control folder of the job folder to which you want to apply the APA file.
7. In the Save APA File As dialog box, type a name for the APA file.
   Valid filenames are Job.apa, Job.v1.apa, Job.v2.apa, and so on.
   Each time you save using the Save APA File menu option, the system saves a new version and increments the version number in the file name.
8. Click Save.
9. Enable APA in a process template.