1) No. You'll need to split.1) if I start a booking with 4 people on a single booking to lets say KUL and then wish to book the next leg with 2 people in J and 2 in W or Y is this possible? Or is it recommended to split the booking into two accounts (from the start) and have 2 separate bookings to allow separated tickets/classes?
2) If I start a booking in SYD and later on wish to add a domestic leg (MEL-SYD) to the start of the booking is this possible? I know you can add onto the end just not sure if you can add flights at the beginning?
2) You can, but you may have great difficulties doing so. Lots of phone agents struggle to add domestic legs to international legs — they'll say there is no reward availability for existing bookings, only new bookings. So you may need to be persistent and patient.