I have really pushed PG a lot for these Big changes, and I have pushed PG for an open Beta Testing, this is the open Beta testing smile
The main thing is you can still use the old pickers and you can still use the Audio Edit window without touching the Tracks or MutiPicker windows. OR just use Reaper with Biab/Plugin and have total control of everything. I would rather have it NOW as it is and give development feedback on it and guide it to what users want than wait another year.