Hrm... Probably? If you're editing a usage inside a course, then it's meaningful to talk about the parent. However, if you're editing the content (Scope.content), then you're outside of a course, so it's less clear what parent would mean.

I think from the Studio perspective, since you're editing all of the fields at once, it probably makes more sense to think about the editing as editing a usage, in which case `Scope.parent` and `Scope.children` are both meaningful.