Well, although you didn't quite get the question I was asking, I did found the issue... Pedal was already assigned and everything was ready, I'm a Musician, and I have used way too much gear in the past, so it wasn't new to me to try a different pedal board.
Here's the thing: I bought the pedal on October, left the country for work and came back on December... Somehow, during that time, the Exp Toe Pedal got out-of-synced and needed to be calibrated manually with the Navigation+Power keys...
Now, here's the funny part... Now that everything is set up again, the Volume doesn't go any lower than 7% (yes, settings and level are correct - Min 0 / Max 100.. as well as db Levels internally).. I undo the calibration and do it again, and still the same... the Pedal has no strange objects that might be blocking the toe to go all the way down, so it's curios to me... It works that way, but still is funny to me that it doesn't go all the way down
