I’ve seen plenty of documentation for how to add items to a user’s timeline, but nothing on how to edit/remove existing items.
As far as I can tell there is nothing in place to edit/hide/feature an activity other than doing it manually by the user. I suspect that timeline management isn’t allowed, much like the ability to manage friends, but figured I’d ask in case anybody had tried with any success.
This is correct, there’s no API that allows removal of content from a profile/timeline (except for posts made by an app, which can be removed by the same app)