Fields to show in Customer. Order is important. You can setup size of field using "fieldname:10%" notation or "fieldname:" for harcoded size,"fieldname" for autosize. <br/>You can use:<br/> id,username, useralias, lastname, id_group, id_agent,  credit, tariff, status, language, inuse, currency, sip_buddy, iax_buddy, nbused, firstname, email, discount, callerid, id_seria, serial