If you need more than 8 different connections using the GUI you can edit the colors section in the "UC4config.xml" file.
Add a new color line e.g.
<Please see attached file for image>
align="bottom" class="documentation" border="0" alt=".png" src="http://ecmstage.ca.com/KB%20Asset%20Library/000008573_Embeded/.png">Save the file, and restart the GUI after that you can use more than 8 connections within one UserInterface.