Can we change recurrant event occurance series?

[hishamahmeddeep]

 item.save(update_fields=['required_attendees', 'optional_attendees', 'start', 'end', 'body', 'subject'],
                      send_meeting_invitations=SEND_ONLY_TO_CHANGED)

above changes the other fields
but can we change pattern.weekdays ?
I can build:

recurrence_pattern = RelativeMonthlyPattern(interval=meeting.interval, weekday=week_day,
                                                                week_number=by_day)

Will i be able to send and call item.save() ?

@ecederstrand looking forward to you help
thnx