No, it is not allowed. While booking a group kind of transfer - the shuttle-bus for the return transfer it is not possible to indicate your wished pick up time.
You should follow the instruction of your voucher, as a rule, you should clarify your pick up time for the shuttle, that is you should contact the carrier company by phones indicated in your voucher.
We draw your attention to the fact that during a group transfer by shuttle bus to the airport, it is not possible for a client to change the pick-up time, since the carrier company plans a route along the chain of hotels the day before for 24/48 hours, including all passengers.
You need to specify your pick - up time by following the instructions in the voucher and wait at the meeting place at least 15 minutes before the time of departure.
Information about the pick-up time is outside the Intui.travel system as providing of a transfer service and the allocation of the time for passengers to board the shuttle is entirely within the competence of the transport company.
Only the carrier company, not Intui, knows the time of pick-up on the shuttle for each passenger.
This is the ubiquitous principle of the operation of group transfers by shuttles to the airport around the world.