@Jdforrester-WMF, we hope that this feature will prove valuable enough and popular enough that it is on by default. (By which I mean: the activation trigger for it will be visible for all users.) I understand that simply adding it to the sidebar is problematic, which is why I supported making it a beta feature. I'd like us to stick to that plan. My concern is that making it an editing preference is wrong (this isn't a preference for how you edit pages) and makes the feature less discoverable.