Yeah Lindsay has basically summed it up. I
To give you another variation the the theme.
Part 1: Clean amp with chorus on.
Part 2: Fuzz On and Wah On for a lead break
Part 3: Fuzz On and wah Off for a rowdier section of the tune.
So switching from Part 1--> Part two is easy. You toggle the chorus off, fuzz on and wah on from the one pedal. However, switching from Part 2 --> Part 3 is not possible because you cannot turn the wah off independently of the other two effects.
Yes, you could run the Wah on its own footswitch but that means you are dealing with two footswitches moving from part 1 to 2, You could also break out a second patch but that is inefficient and comes with other issues (e.g. lack of delay spillover).
The major competitor to Line 6 at this price point does have independent assigns that allow you to configure this and its one of those things you don't know is useful until you use it !