[otrs] FreeText in CustomerTicketZoom

I have OTRS 2.4.7 with Debian Lenny and mysql, it works perfectly, recently generated a need in the company where I work, which can be solved if they could be viewed and edited the "dropdowns" of the FreeText in CustomerTicketZoom. I have reviewed the SysConfig but does not seem a natural choice of OTRS, does anyone know how?