[otrs] Create non-client visible tickets

Hi, list: I'm looking for a way to create tickets for a client that still are not visible for them (quite alike to an "internal note" but expanding the whole ticket). There are situations like i.e. maintenance operations we want to associate to a given client and take advantage of OTRS's workflow, SLA, notes, etc. but that simply are not for "client consumption". Anyone know how can I achive this goal? TIA -- Jesús M. Navarro Jefe de Sistemas y Soporte Ándago Ingeniería - www.andago.com Teléfono: +34 916 011 373 (ext. 29) Móvil: +34 666 431 088 e-mail: jesus.navarro@andago.com