Management of the $errors variables in the One Page Checkout module.

[EnricaS]

Hi everyone,
does anyone know where errors are handled in the 'onepagecheckoutps_step_two' box of the onepagechekout module of the PS checkout?

The strings for the messages are saved in the back office, but I need the configuration that selects one message over another and in the template, it selects them only as the $errors variable.

EnricaS

thanks!