[delay] FR: change both L and R simultaneously and sync

[dndrks]

https://llllllll.co/t/codebreaking-cheat-codes-livestreams-sun-aug-16-11-12-15p-edt/31717/158

(1) Petition to have K1+ E3/E2 on delay parameters to change both L and R simultaneously and sync. So feedback L on 50% and feedback R on 75% would jump to 80% in both if K1 is pressed while turning the respective encoder.
Edit: Specifically on feedback I’d rather have a quick on/off function (not synced): turn left to jump to 0%, turn right to jump to the current value. For the rest sync is better.