It's been in the works for a while now, but it's more of a convenience for editors (and a correction of a design flaw) than a major improvement.
目前这已在进展之中，但这更多是为了编辑的便利(同时也是纠正设计上的瑕疵)而不算一个大的改进。
2
Since viewpoint correction only works on flat surfaces, any image which is viewpoint corrected must only have control points placed on a single flat surface.