In the process of doing the on demand training for Openroads / Geopak and I'm attempting to create a terrain model in the "Open Roads Getting Started" classes, Lesson 3. And I'm importing the .tin file for Geopak that I'm using and when the "Import Terrain Models" window pops up and I click on the "Feature Definition" drop down bar I am not shown any options and I can't continue with the training. Is there something that can be done to correct this? Thanks