Multi Out with Multi-timbral synths. MIDI routing basic tips and DAW Setups

You need to set the input channels on the instruments you are sending to. Scaler is just sending everything out. Make sure Multi Out is turned on in preferences.
Channel 1 sends everything
Channel 2 Lowest notes
Channel 3 Next highest notes, etc.
Depends on how many notes in your chords.

This thread goes over it in detail.