When working with multiple layers, the question often arises
of what to do when parts of a single layer need to be both behind,
and in front of, the other layers. The following is a fairly easy
method for selective erasing.
In this example we're using a paper clip and a paper mat. Place
the paper clip on the layer below the mat and position it where
you want it. Control click on the paper clip. See the marching
Select the mat layer as your active layer, then choose an eraser
brush, hard edged. Using the selection, erase out the parts of
the mat that you want behind the paper clip. The selection will
ensure that only the parts of the mat where the paper clip are
will be erased. When you've finished erasing, Control-D to deselect.
If you are using multiple papers, do not deselect, rather select
the next paper as your active layer, and erase the same as you
did above. Repeat for all layers as needed. In this example I've
added a small strip of paper over the mat.
This also applies to threading a ribbon through a buckle. Place
the ribbon layer above the buckle layer. Control click on the
buckle layer, which will place the marching ants around the buckle.
Click on your ribbon layer to make it the active layer. As above,
choose an eraser brush, and erase the parts of the ribbon that
you wish to have behind the buckle. When finished, Control-D to