There is a shape in Layer:Teeth_Down
and another Layer Upper_Mouth is above this layers.
I want one shape ( see in red points selected ) to come over to Layer Upper_Mouth. Pointed the shape with Yellow Mark.
Thanks for guidance. I want half part of the teeth should be covered by down_mouth, but half part of the teeth should be over upper_mouth.
If I create a new layer over upper_mouth, then half part of the teeth how will come under down_mouth?
you could also split the top of the tooth with a line, then copy the tooth to its own layer, but only fill the tip (similar idea to slowtiger, but no masking)
or, if you changed your design slightly so that the bottom lip doesn't need to go under the top lip you could put that (or split and put the front part of it) in a layer above the top lip so that you can put the teeth in between...
I would put the whole mouth on one layer and make the whole tooth at least two fill shapes and use shape ordering to make the upper part of the tooth on top of the upper mouth.