Just occurred to me that there's no simple way to have differential user permissions for a view. For example user john can delete while user jack can add and edit.
I know I can edit the forms tied to the views to allow this but it seems to me this type of segmentation of user permissions should also be available in the view context. For example, in the image below, it would make sense to have a drop-down list of all users with the ability to customize permissions.
Maybe this is the group-sharing feature that has not been released?