In this example we will link two sites together (we'll use fictitious site 1 and site 2 for the purpose of the example):

Login into the TE3 admin interface on both site1.com and site2.com and navigate to the “Network” menu on both sites.

Click Manage sites button and open Manage sites pop-up window on site1.com.

Click button to add a new record.

Enter Title for the site you're adding.

Enter Login URL for site2.com: http://www.site2.com/your_te3_directory/index.php

Enter security key from site2.com. Security key can be found in the “Manage sites” window on site2.com.

Click on the button. If site2.com has been added successfully, it will automatically get loaded in “Network” stats table:

After site2.com has been successfully added to site1.com, you have to repeat the procedure on site2.com (and add site1.com), or use the alternative method, described below:

The above mentioned procedure could prove time-consuming if you wish to link multiple sites. The alternative method is to simply synchronize your network:

Close “Manage sites” menu on site1.

Check box site2 in the Action column of the Network menu.

Mass edit panel will automatically slide-up from the bottom - click on Sync sites button and site1 will be added to site2.