Choosing the menu "Index" -> "Index" option
or clicking on the index button on the main toolbar will open the
"Index" dialog, where you can start indexing your website.
Online mode and offline mode:
Search Engine Composer supports two kinds of indexing: Online
indexing and Offline Local Computer Indexing. Online mode indexes
from the online website (such as http://www.mtopsoft.com). Offline
mode indexes the Web pages from your local computer.
Add additional websites to index:
By choosing the "Add additional websites to index"
option, you can index multiple websites or Web folders simultaneously,
thus getting a unique search portal for multiple websites.
Offline mode options:

Corresponding base URL:
This string will be added to the result link address as a prefix.