Unfortunately, there aren't tutorials and examples of adding text for scrolling in Vizrt Viz Trio, but you can check the official support page to learn how to use Trio Scroll. Trio Scroll is a plugin for positioning and scrolling a fixed set of elements in a specified direction. In general, it is used for credit lists or crawls. Before using this plugin, you will need to create the credit list following the instructions from Creating Text Objects page. If you have issues, use the contact information from the official web page to get in touch with the developers.