I'll tweak with it a bit!Hell yes!! Glad you found that out in here man. It is most def a, very simple and effective, game changer.
Honestly, I just run a crossover wherever it sounds good to my ear. Can’t help you there on a specific answer. But I can tell this, you can totally do what you’re describing in that second query. I think you can store up to 6 (I can’t remember atm!) to one switch. And you can use that one switch to cycle through all the effects you have on that switch and adjust settings where needed. It’s really easy, simple and quick when you learn the pedal. Which doesn’t take that long when you get one in front of you.
And I think I'm wanting to do something different...where the same effect is assigned to two different switches with each one activating different settings for it...