Comment 2 for bug 1656225

I'll join in to push this idea!
IMO especially the Echo effect is only usable for 'random delay' effect ATM. It's very hard to somehow adjust Echo delay on Pfl first (for a running track) then apply it to Channel and mix it in. Matching the BPM is pure chance...or hard work/time.

I imagine that it's kind of hard to implement: first press Echo's 'Sync' button then adjust a stepped Potmeter to set the delay to 1, 1/2, 1/4 of a beat.
When a new track is loaded, I'd expect both to reset to some default value, like 1/2 or 1 beat of track's BPM, or better: the stepped Potmeter's last value.