Is working what is jboss.modcluster.proxyList param when start jboss eap

According to the Load Balancer Configuration Tool, when you do not use advertise, you are asked to run -Djboss.modcluster.proxyList = 127.0.0.1: 6666 in the execution parameter. Is this correct?

It does not seem to work unless you put it in the xml file directly like below.

Is the Load Balancer Configuration Tool correct?