The animation available in InDesign and CircularFLO is good but can be found to be too basic for some needs.
More complex animations or animations with interactions which are beyond can be placed onto the InDesign page using the CircularFLO Web Code & Widgets tools.
The Animation Tools panel (CircularFLO Window menu > Animation Tools) can be used to help prepare your documents.
Animations are a great way to prompt the reader to interact with the EPUB page and can be applied to any page object or image, to live text frames, to audio buttons and hyperlink objects.
Animations are stored with the object they are applied to and so can be saved as InDesign snippets, saved in InDesign libraries and dragged between pages and documents to quickly share and reuse your create animations settings.