Request for Nested Mask Option in Blender Grease Pencil Layers

I hope that the grease pencil layers in Blender could have an option for nested masks. For example, the pupil is masked by the eye contour, and then the layer group consisting of the pupil and the eye is further masked by the face contour. This would allow for more precise and complex control over the visibility and interaction of different elements within the grease pencil drawings.Additionally, is it possible to exclude lines in the mask, just like the 'Exclude Lines' function in Moho software?