Bizarrely, this only works on my laptop.
Cannot get to work on desktop at all.
1. Open an 'Empty Project'
2. Insert 'Synth of choice' with midi source and first synth audio output.
3. Insert 'Blue Arp' with midi source and first synth audio output.
4. Write some notes into the 'Synth of choice' track.
5. Turn on 'Input Echo' on both midi tracks.
6. Set output of 'Synth of choice' to 'Blue Arp'.
7.Set output of 'Blue Arp' to 'Synth of choice'.
8. Set input of 'Synth of choice' to 'All external inputs, midi omni'
9. Set input of 'Blue Arp' to 'Blue Arp, midi omni'.
10. Modify the settings of Blue Arp by clicking the midi icon of 'Synth of choice'.
11. Modify the settings of Synth of choice by clicking the midi icon of 'Blue Arp'.
