How do I use ReplaceAnimNotifies on blueprint?

I want to make scripted action to replace AnimNotify from an AnimSequence. I want to use ReplaceAnimNotifies node from blueprint, but stumble to find out what should I put at OnNotifyReplaced delegate.
How should I use it?

OnNotifyReplaced is not an input, it is a delegate (a call back), so you don’t put anything in. You could for example use it to trigger a custom event when the notify has been replaced.