Events - How to repeat layer animations?
You can repeat your layer animations using the default "layerAnimationPlayIn" event, which you need to trigger the layer animations again.
The first thing you should do is to write the "layerAnimationPlayIn" event to the "Plays in when:" field of you animations Event tab.
This event is triggered when the slide loads, but it's a way to make the animations play in once again.
Turn on the Repeatable at every layer's IN animation. Go to the In tab of the layer's animation tab, click on the More button.
Then scroll to the bottom of the page and locate the "Layer global animation properties" section. Turn on the Repeatable switch here.
You should create a new layer, for instance, a button layer, which you will use to trigger the "layerAnimationPlayIn" event. Go to the Events tab again, and look for the Click field under "Trigger custom event on".