J2EE Debugging - Unable to perform action on node

Howzit, howzit!

As per the document "Debugging J2EE Applications" (https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/def/debugging j2ee applications.pdf), I am trying to set a node on our J2EE servet to debugging.

There are three nodes: dispatcher, SDM and server0. According to the doc, I should be setting server0 to debugging. However, when I right-click on that node, all the options are greyed out (inactive)! Why is this?

Thanks and Regards,

Martin