How can I fade my texted titles off the screen? There is a roll/crawl option, but how can I get the words to cleanly fade away from the screen, or any other transitions off screen that dont involve it moving?
Have you considered dissolve or opacity?
Go to "dissolve" in the "Video Transitions" folder in the "Effects" window. Drag the dissolve effect to the beginning and end of your title clip on the timeline. You can control the length of the dissolve by lenthening or shortening the effect box on your title clip. The other way is to select your title clip on the timeline, go to "Effect Controls" and use keyframes to change the Opacity of the title clip from 100% to 0%.
The most simple way is to just add a Cross-Dissolve to the end of the Title. Next, as Harm mentions, is to Keyframe the fixed Effect>Opacity to 0. You can also add Dip-to-Black, depending on what you want.
There are several other Effects that will get you about the same thing.