If you followed the tutorial and added your animation to the "Action Menu", then all you need to do is save the prop and the animation will be maintained with the prop.
So in Content Manager switch to the Prop tab, and then click the ADD + button at the bottom of Content Manager. This will save the Prop in your Custom library for later use.
Then if you start a new project and load the saved Prop you will find you can right click it and choose Action Menu to find your saved animations.
Peter
Forum Administrator
www.reallusion.com