Cubase LE: HALion Sonic SE multi-timbral doesn't appear in MIDI import destination

Hi everybody.

I have a problem when I import midi files in my Cubase projects.

When I go in Preferences>Midi>Midi File and I go on the lower part to set the sound destination of the MIDI file imported, I only find “MIDI Tracks” and not also the options “Instrument Tracks” or “HALion Sonic SE multi-timbral”.

Can someone help me finding a way to add it?

Thank you.