The moving animations that -have- been made have, I think, actually been made in the same way as the original animations - i.e., in a studio. They're all motion captured, which is both a blessing and a curse - a blessing because they're smooth and fluid and lifelike (obviously), a curse because, well, if there's a missing animation it's not very easy to make a new one or to fix the old one, or in the very least make them look good. I do believe it's possible to make new animations in O2, but it's something that takes a lot of time and effort.
Also this isn't really the right forum to discuss this, so I'll just move it to the general Addon's board instead
Wolfrug out.