You'd have to visit the Privium office in order to complete the iris scan and paperwork. This office is ground side I believe and so you can't drop in there so easily on a transit. I think though that is a well worth while thing to have and will be signing up for it in the new year when i do have occasion to go ground side at EHAM. The passport queues as between non Schengen and Schengen are a disgrace entirely due to undermanning but a real flight missing hassle for all that.
Last edited by cavortingcheetah; 15th November 2017 at 16:22.