You can add computers to your tree directly from Active Directory (AD):
1. From the main menu, select Tree > Add computers from AD.
2. Ensure that the "Domain" field displays your correct domain name. If it does not, type the domain name manually.
3. Click the Query AD button to retrieve the list of computers from Active Directory. If the resulting list is too long, use the "Name filter" field to narrow down the query results.
4. Select the computers you wish to add to the Event Log Explorer tree. You can choose to add them by Computer Name or DNS Name.
