Referring to 2.6.1 (modifying sub-circles) and 2.6.2 (removing sub-circles) of version 4.1:
Can this be done only by the immediate super-circle? Or can it be down by a super-super-circle, like the anchor circle?
Example: a circle is two removed from the anchor circle. Can the GCC modify/remove it, or only the immediate super-circle?