How to enable animation support?
When you enable animations, polotno will add additional UI in the toolbar to change animation properties of the selected object, and it will show "Videos" side panel with a library of stock videos and adopt "Pages" component with ability to preview the scene.
You can preview animations and export an animated scene as a GIF on a client side programmatically:
To export the design into a final mp4 video, use Cloud Render API.