If you wish to have an animation that triggers with a mouse click, you can easily do so by using the 'On Click' event type with the Semplice motion features.
Setting the event type
To set an on-click motion event, navigate to the Motion tab in Semplice. Under event type, set this to 'On Click'. Now, your animation will be triggered with a mouse click. You can of course customize the animation to your liking.