If you find that your members are having a difficult time finding the Pop Out button on the Ning Chat Bar, here's one way to add a Pop Out Link.

Add to Text Box (Mat's Solution):
<b style="font-size: 14px;"><a href="javascript:void(0)" onclick="window.open('/chat/index/popOutWindow','Chat','width=500,height=600')">Pop Out Chat</a></b>