Just to confirm what I have read in previous posts (through search):

Once MONE4 ticket is issued, can one change the date of the first sector? If so (as I believe) does that change require a re-issue or can the traveller simply turn up at the airport with the original coupon after having changed the date on the resveration (on the phone with QF).

I know for a fact that date changes for subsequent changes can be made any time over the phone and this does not require a re-issue - simply present coupon at check-in and that is sufficient as long as date was changed in the reservattion record. Is this also the case for the first sector?