"An installed toolbox during one Scalalab session, remains on the ScalaClassPath, \n"+
"e.g. having installed weka.jar, weka.jar remains on the ClassPath for next sessions\n\n"+
"\n Remove toolboxes: \n"+
"Use `Clear ScalaSci ClassPaths` and then reload your favourite toolboxes\n");
paramTree = new scalaSciScriptsPathsTree();
paramTree.buildVariablesTree();
JPanel helpPanel = new JPanel();
helpPanel.setLayout(new GridLayout(1, 2));
helpPanel.add(new JScrollPane(helpArea));