Howdy Karl,
That’s not a daft question at all. I am a bit ashamed to say we don’t have a comprehensive list anywhere – yet. We have been working on it, we even have one person right now who has been running through and documenting as many as possible in addition to writing automated tests. Until that’s complete though, we won’t have a list on our website.
Our support team also needs to find actions and filters all of the time. And we do so mostly with the use of folder search inside of the plugin folder. It’s a bit of an art though unfortunately. Is there anything specific I can help you find? A specific customization you’re trying to build?
Cheers!
– Brook