How do I add the event 'toggle simulate physics' into blueprint?

So yeah I’m pretty bad at using unreal engine, so if someone could help me I would really appreciate it.

Toggle Simulate Physics is a function, not an event. You just need to have a reference to the object that you want to simulate the physics of to attach to it. Check out the Content Examples project in the Learn Tab for more examples of how to use it: Content Examples Sample Project for Unreal Engine | Unreal Engine 5.1 Documentation