I'd like to know how to automatically assign the visibility of all my Facebook posts to, at most, a custom friend list. I know about the "Limit Old Posts" feature, and this does not allow you to select a friend list. Facebook has an API, does some 3rd party tool do this?
As of this moment, the only way I know to do this is manually, one post at a time. I have 7 years worth of posts. (It seems Facebook really doesn't want us to do this.)
This question is very related to this one. The conclusion there is that there is no automated solution.