Create Animation - Launches the animation creation wizard.
Change Analysis Actor - Changes the analysis actor associated with the currently selected animation. No changes will be visible in the animation until a new analysis take is taken. No curves will be removed from the animation, even if they are not contained in the new anaysis actor.
Change Audio - Works on the currently selected animation. Changes the audio file associated with the animation.
Remove Audio - Removes the audio associated with the animation
Reanalyze Audio & Text - Attempts to reanalyze the audio file and text file associated with the animation. Changes to the animation such as phoneme bar changes may be overwritten, but owned by user curves will persist, as will the previewanim setting. Use this to rapidly iterate on text files with emoticons, or other text tags.