1.Load ARPG8R and your favorite VSTi.
2.Select VSTi's MIDI From to ARPG8R. and Check whether the Button is Enabled.
3.Input chords on the ARPG8R track.
To Active the "Monitor" button always,
4.Set the Option "Instrument Ttack Monitor follows Record" to Off.
5.Enble the VSTi's monitor button.
Shorten note lengths a bit on the piano roll to avoid overlapping notes.