To add a layer:

1. On the Active Layer toolbar, click , , or to add, respectively, a new CAD Layer, Objects Layer, Partition Layer or Analysis Layer.

   or

   In the Layers Directory, right-click on CAD, Objects, Partition or Analysis Objects and select Add Layer.

   The Edit <CAD/Activity Objects/Partition/Analysis Objects> Layer dialog is displayed.

2. Depending on the type of layer you are adding:
   • For an Activity Object or Analysis Layer, enter a name in the 'Name' box and click OK.
   • For a Partition Layer, enter a name in the 'Name' box and select a Target for the layer (see Selecting a target for the Partition Layer for more information).
   • For a CAD Layer, enter a name in the 'Name' box and, if you want this layer to appear in the eventual simulation, tick the box Use in simulation. If you do not tick this box, the layer can only be used for Presentation CAD. See also Changing the properties of a CAD Layer .

   The new layer appears in the list. Any layers excluded from simulations are shown in italics in the Layers Directory.