Disabling inheritance of rotation and scale from only the direct parent while allowing inheritance from other ancestors is a complex feature to implement due to the intertwined nature of rotation, scale, and shear in the transformation matrix. Spine currently provides options to disable inheritance of these properties, but they apply to the entire hierarchy above the bone, not just the direct parent. This is because the transformation matrix combines these properties in a way that makes it difficult to selectively disable them without causing instability or unexpected behavior. As a workaround, you can use transform constraints to achieve similar effects by controlling which bones inherit transformations.
