For those that are relatively new to Xara, and animations, parallax and reveals I always consult this great demo page from Xara.
http://previews.xara.hosting/charity/

I’m amazed what Xara can do with the proper reveals and animations working together. I use the features sparingly, but on the demo page all the animations and reveals are explained well. I use this site as a reference for what Xara can do.

Hope you find it informative.
-Bill