I'd like to be able to do this, Amsterdam being the city in question.
Would like to avoid the 6am departure for AMS from DUB, and then connecting 3, 4 5, hours later to long-haul. Would prefer to take afternoon flight to AMS , spend the night
and leave the following day. Airlines being either Aer Lingus /KLM.
Have never found out how to do it, at no extra cost at time of original long-haul booking.