Problems navigating JME3 Sources with JME3 SDK

Hello,

I use the jMonkeyEngine 3 SDK (3.0 stable) with the latest updates.

I can only navigate “one layer” into the JME3 sources.

Example:
I go into the source of SimpleApplication and when I then want to “go to declaration” of Node,
jme3 SDK says “cannot perform go to declaration here”.

When I go into my own source I can import Node, and use “Go to Declaration”.

Is there a Verbose Debugging console I can activate in Netbeans/JME3 SDK?