I spent some time looking at these Multi Effects (or more like hearing them). There are a total of 84 Multi effects, described in detail in Tone and Drum Kit list.

Question: Why are there two MFX-es? >>> MFX1 and MFX2 when they both share the same 84 multi effects? Couldn't they just call it MFX, and that's it, and apply it to Upper1, Upper2, Lower and Manual Bass?

I also noticed: There are 12 Reverb Types and 6 Chorus types. If the Reverb or Chorus value have a "0" zero value in the MiXER, than they won't sound. Well pretty obvious, I guess, but I am like a 5 year old when it comes to this.

Anyway it needs a value, that value I guess is the amount of reverb or chorus that needs to be applied to each Tone Part.

Actually I tried to hear the 6 chorus types, but I heard no difference since in the mixer the chorus for the selected Tone Part was set to zero, once I increased the value I was able to hear things.

One more thing, once you go in the MFX1 sub-menu, you'll see MFX1 Switch (I get this one), next MFX1 Type (I get this one too), next MFX1 Edit (I understand that you can do some editing of each effect, now next is where I'm totally lost called MFX1 Controls, I mean what???

So MFX1 Controls are totally Chinese to me, and there are two sliders on the left side for MFX1 and MFX2. What am I going to use them for?

Try to explain it to me like to a 5 years old, why is that we have MFX1 and MFX2 when they are identical, and what are these MFX controls?

Thank you:)