When you create a topology, use this dialog box to select the links to include in the topology.
Link information is stored as object data and saved with the map. Each link is given a unique ID number, which is automatically processed whenever you use a topology command.
If this option is selected, only objects that are on the specified layers or blocks are selected. The filters are used for both automatic and manual selection of objects.
If this option is not selected, the filters are ignored.
Specify which layers to search for objects to be used for the topology.
Enter an asterisk (*) to search all layers.
To select from a list of layers, click Layers.