I was able to publish the example plugin earlier than expected: https://tamschi.itch.io/battler-flipbooks-core/devlog/692886/layer-example-plugin
This is a small script that only shows damage animations, but it can be modified to play animations for other events.
(If this already solves your problem, I would greatly appreciate a small support payment, as creating polished plugins like Battler Flipbooks Core takes a lot of work. Only if you can spare it, of course.)