[Xymon] Using the "link@" value in hosts.cfg

Hi folks. I was studying the xymon.com pages and examples of the hosts.cfg settings. In the hosts.cfg file there, I saw this host line with a "link at 90.184.110.202" as below:

page services Services

group-compress <font size="+1">Network</font> 147.29.31.155 adsl.hswn.dk # NET:home noconn testip link at 90.184.110.202

It seems as though this creates another column for "link" in the xymon webpages.

Does anyone know what or how the "link@" value works and how to configure, or where the doc is to explain it?

Thanks,

Don K