Shape Key – Ключ Форми
Shape Key Editor – Редактор Ключів Форм
The Shape Key Editor is used to adjust the animation timing of shape keys. These are stored inside an Action data-block. It lets you edit the Value of shape keys over time.
This mode of the Dope Sheet uses a similar interface as the Action Editor – Редактор Дій Mode with the distinction of the absence of header filter controls and tools for channels.
Mask – Маска
In the Dope Sheet’s Mask Mode mask shape keyframes can be selected and edited. All Mask data-blocks in the blend-file are shown.
See Masking.