Self Option - Definition/Use Case Not Found

I don’t seem to be able to find a definition or reference to explain “Self option”. I am poking around with conditionals (on a Select View>Action) and with “Logged in user” and want to verify my thought on what this is. A use case would be more beneficial, at least to me.

It is really a hack to get around the fact that our current type system does not handle complex types well.
We’ll update this doc to reflect this.