To access Exchange List

1. Make the Chart Window window the active window.
2. Click the right mouse button anywhere in the chart window background and select the Symbol Properties from the context menu or double-click anywhere in the chart window background and Symbol Properties window will appear.
3. Click Lookup in the General tab and Symbol Lookup window will appear.  
4. Click Add Symbol and Edit Symbol window will appear.
5. Click in the General Properties tab and Exchange List window will appear.

You can see Exchange List window below.

Use Exchange List to add new Exchanges.

See also ExchangeProperties.