Allow User AbortAllow User Abort [<on or off>]
• On allows users to stop a script by pressing Esc or Command-.(period) (OS X).
• Off prevents users from stopping a script by pressing Esc or Command-.(period) (OS X).
The Allow User Abort script step also controls whether unknown (obsolete or unrecognized) script steps stop the script. If this script step is set to On or is not included, unknown script steps will stop the script; if Off, unknown script steps are skipped and the script continues to execute.