Yes, that’s the right way to do this. Here’s a bit more detail:
You can supply a voltage to choose which phrase to play (using notes C3-C5 to represent the 25 phrases) or you can trigger the next phrase, or trigger a random phrase. Right-click the panel to set which option you want to use.
You can also choose whether the change of phrase happens immediately, or whether it doesn’t take effect until the end of the current phrase - in the popup editor, choose one of the “Instant / End of phrase” options.