Dialogue Plugin

Hello there, I’m trying to use this plugin for an RPG that I’m making and I’m wondering about multiple dialogue’s for the same person. To be more precise, have an NPC who has one dialogue at the start, and then has a different dialogue after a certain event (like finishing quest). My first thought was to create a single dialogue file that has multiple start points and then have an event that just changes which start point to pull from. So first off, is that possible? And if not, what would you suggest?