[otrs] OTRS 3.1 Additional customer informations in TicketZoom view

Hello, I'd like to add some more customer informations on the side bar widget in the ticket zoom view. I actually have the default firstname, name, user name and mail, and I want to add the comment field. I took a look at the AgentTicketZoom.dtl file and see this section : # show customer info table <!-- dtl:block:CustomerTable --> $Data{"CustomerTable"} <!-- dtl:block:CustomerTable --> Where is defined the CutomerTable ? I saw many times that it would eventually be in the config.pm.... but there's nothing in that file that talk about the customerTable (I can copy/past this file content if needed). thanks for your help. Philippe