[otrs] Customer limitations: just "New ticket"

Hello list! As I'm figuring out how to implement OTRS into my existing IT Environment, I was thinking that my users would be getting quite confused if they should be able to have "many" buttons in their console. Now, I'm asking: is it possible to leave the customers' just the ability to create NEW TICKETS? No Prefs, no open ticket views, or similar... Thanks -- ---------------------------------- Boniforti Flavio Provincia del Verbano-Cusio-Ossola Ufficio Informatica Tecnoparco del Lago Maggiore Via dell'Industria, 25 28924 Verbania ----------------------------------