Remember that prompt can be not visible if a session doesn't return any output or if it returns _false value from startup() procedure.
To force prompt in the Console you should proceed differently for different types of sessions (changes will apply after restarting the session):
- standard Session - edit the session and mark the Force command line [-cli] checkbox in Startup Options, in Overview tab
- Session Link - edit the session and go to the Overview tab. Mark the Use custom checkbox. In text field type -cli.
- Command Line Session - edit the session and go the Overview tab. Depending on the used executable file modify fields: Executable file or Command line parameters.