Currently, when user update progress of sub task, Easy Project send 'Automatic change from subtask #' mail notification for parent task every time. In huge project, most tasks are hierarchized (parent-child relation) so that users receive many 'Automatic change from subtask #' mail notification. In most cases, such notification is useless.
This modification would add the option in MORE - ADMINISTRATION - SETTINGS - EMAIL NOTIFICATIONS next field for the subtasks. For example, "send notifications from subtasks" with check/uncheck the box option somewhere here.