Here it is described how to create new users.
But there is a small change not yet described in this WIKI concerning the Global ID given to each internal employee of ZF. An email by Boris Koeberle from the 15th of December 2015 tells us not to create new internal accounts without entering the Global ID. We have to ask the HR department which one is assigned to the user in order to creat ea new identity in GDS WebCenter.
In this case I looked at it and found the Global ID 10020737 for Supattra Mongkolsahakul.