Maven 2 plugin and supplying goal command line arguments

Using Selena. Can't find help on this. How can I pass arguments to maven goals using the "Maven Projects" window ?

e.g. for running the test goal how do I pass it -D arugment like:

mvn test -Dsurefire.useFile=false


rightclicking on the goal doesn't give me an option to pass argument to it.

???
thanks