You can quickly build and edit multi-layer compositions using the Layer Editor. As in the Schematic view, you can use the Reaction drop gate to quickly build your initial composition, and can drop tools directly onto layers.

The Layer Editor's context menu also lets you access the Pick List, select the layer's component nodes, such as materials, and other tool nodes associated with the selected layer. When you select a Reaction node or tool, the appropriate panel in the Tool UI is displayed, so you can modify properties interactively. For more information, see Creating Sources and Layers.

To add tools to a layer in your composition:

1. Do one of the following:
   • Right-click to access the Pick List, or select the Pick List tab.
   • Middle-click or press the tilde (~) key and go through the east gate and display the Pick List, Tools, and Views tab.
2. In the Tools tab, drag the tool to the layer you want to modify.

   The tool is added before the source input for the layer, and its Tool UI is displayed.

   NoteAny tools added to a layer are added to the context menu. When you right-click the layer, you will see any tools in its branch.