Thanks for all the questions and comments y'all! Here is a link to another video tutorial for modding Expeditions: Conquistador with the Fabula Event Editor. This one focuses on:

[*]creating a new event inside the RandomEvents.xml
[*]triggering an Event
[*]creating Event text
[*]creating player choices
[*]Making sure the Event only triggers 1 time


http://www.youtube.com/watch?v=s8iuVqenDIc