The Timeline Layers

The Timeline displays a layer of items (such as people, events, and writings) over a background layer of geographic regions and political periods. The Timeline is supplied with a number of pre-defined layers.

Two types of layers are applied to a Timeline via pop-up menus:

• Region Layers, which display specific geographical areas.
• Item Layers, which display specific names or events.

When you open a new Timeline tab, the pop-up menus match the current default settings.

For each pop-up menu you can:

• select a different layer.
• change the default settings.
• define (create or modify) a layer and choose its display characteristics.

Note +L reopens the last Define dialog box if a Timeline tab is active The application, window, tab, or other screen element which is currently being used; sometimes called the "front" or "frontmost" screen element.