Yes, if you have multiple animation sets, enable Animation Showcase from the Viewer export window. This will add a dropdown with an entry for each animation to the Viewer interface. When Animation Showcase is disabled, the animation will play as a series from the start to end frame.
Learn more about how to import and create animations in Toolbag with episode #3 and #10 of the Getting to Know Toolbag 3 video tutorial series.
