How To Use Sequencer Vsti's

I have a couple VST instruments that don’t seem to generate any audio themselves, they are just sequencers or arpeggiators that control the notes (MIDI?). How do I hook these instruments up in Renoise to control other instruments?

As example, consider the freeware STEP4Free from TubeOhm, how would one use this? I’m guessing I have to use some kind of Meta device, but not sure which one or how.

Thanks, Matt