[Koha] Add Additional Patron attributes to Patron quickadd form

​​Hi, I'm running Koha 16.11 on debian 8. I've created an authorised value category called "TIPO_PERSONAL", added a new patron attribute ​type named "RELACION" and linked it to that authorized value category. It appears correctly in the full form but I need this extended attribute to display in the Quick add patron form as well. I've​ ​edited the syspref PatronQuickAddFields​ to display other fields, such as address, but in this case​ I don't know the ​n​ame of the field to add. What can I do? Thanks in advance, -- Maite Arakaki