1. Load ARPG8R VSTi on track 1.
2. Load your favorite Synth on track 2.
3. Input chords on the ARPG8R track.
4. Show the Routing Matrix (View menu > Routing Matrix).
5. Click the "Route" button in the Synth track.
6. Add new recieve item (ARPG8R).
Shorten note lengths a bit on the piano roll to avoid overlapping notes.