This option is used to specify how the bleed and slugs document values of the generated output file will be set; either automatically, or on a script-by-script basis.
Bleed and Slug settings in the InDesign UI
When this option is true, then the generated output file will use the bleed and slug values of the script's main grid (assuming that the use main grid as seed for generation option is turned on, otherwise the message 185710 will be issued).
When this option is false, the bleed and slug buttons allow you to specify the bleed and slug values for the current script.
Topic 185485, last updated on 23-Apr-2021