The nodes and arcs on the display are composed of more basic layers. By using the Layer Visibility... command (in menu Window), you can control which layers are actually drawn.

A dialog is presented showing the layers in the current technology. When a layer is checked, it is visible. Special buttons let you mark or unmark all of the layers.

This is a modeless dialog: it can remain up while other editing is being done. Therefore, you can apply visibility changes with the "Apply" button without dismissing the dialog. |

The right side of the dialog lets you choose which of the different types of text will be visible. These different types of text are described more fully in Section 6-8-1.