Switch Between Animations

Hey, I got a question, I got a composition of different Cameras with different buttons which each one takes you to a different camera position, even does it randomly, but each time I click on a button I want it to display different animation instances, the first one when I select the first camera it appears an animation of a 3D Object and the second one when the 3D object hides and then starts the other animation of the next selected camera. I hope I was abel to explain myself, Any doubts please let me know