I use two pedals when playing

Pedal assignments vary based upon several factors: the genre, the main lead instrument and what I want to attain vocally.

For instance:
Pedal one is most often used for sustain. When appropriate I assign it to glide for particular instruments (guitar, strings, sax.)

Pedal two is usually assigned to trigger a "break" or "fill to self" for a drum riff...but on other occasions it is most often used to trigger the harmonizer.

Since I use one registration bank per song, pedal assignments will often change from one registration to another within the same bank.

Eddie