About Arbortext Styler > Document Preview and Publishing > Arbortext Advanced Print Publisher in Arbortext Styler > Extending a Stylesheet with APP Code
  
Extending a Stylesheet with APP Code
You can edit the source of these objects for APP:
• Context
• Property set
• Page set
• Page type
• Page region
To access the APP source of an object in a Arbortext Styler stylesheet for edit::
1. Select the object in the relevant list view.
2. Select the Edit > Edit objectname Source > APP menu option.
The source of that object opens.
The menu option is only available when your stylesheet is set to use APP as the print/PDF engine.
3. Make the necessary changes to the object, using JavaScript code that references objects from Arbortext Advanced Print Publisher’s Formatting Object Model.
Refer to the Stylesheet Developer’s Guide to APP Code for information on making stylesheet edits for APP, plus examples.
Refer to the Formatting Object Model Reference for details of the objects described by the Formatting Object Model.
See Overview of Autogenerated APP Source for further information on the source generated for objects for APP.