Q about bet and donk bets in Pio

Hi everyone,
I just started playing with Pio and there's a difference between betting and donk betting sizing on Turn and River for the inputs for the out of position player. I'm kind of confused about this. When does Pio use the bet size for the out of position player rather than the donk size? Is it when the out of position player leads the flop? It's not to do with the aggressor pre flop, is it? Thanks!!!
__________________