Shared layers are only found in the professional version of OmniGraffle. If you do not have the professional version, you can skip this part.
A layer can be shared between canvases thus the name shared layers. A shared layer behaves a tiny bit different from ordinary layers: When you change the content of the shared layer this change is reflected on all canvases sharing the layer. However, there is no difference when it comes to editing shapes on a shared layer, this works as normal. If you copy, or move, shapes to and from a shared layer, this will of course be reflected on all canvases sharing the layer.
You are now going to learn how to work with shared layers, by doing an example. You can use any of your existing OmniGraffle documents—or you can work with the document from earlier in this chapter. The name of the document is Layers 3 shapes
and is found in the folder named Chapter 8
in the download bundle.
We're going to extend this document with another canvas, but most...