Grouping layer frames/bone frames make it more convenient to manage multiple layer frames/bone frames. Ungrouping layer frames/bone frames to modify the layers and modify the bone movements.
Group layer frames/bone frames: Hold down Ctrl to select all the layer frames/bone frames > right-click to select [Group] in the pop-up window.
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Ungroup layer frames/bone frames: Click the group > right-click to select [Ungroup] in the pop-up window.
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