/**
* Adding the page to the wizard.
*/
public void addPages() {
page1 = new AddPlanWizardPage1(selection);
page1.setTitle("Add Plan Wizard");
page2 = new AddPlanWizardPage2(selection);
page2.setTitle("Add Plan Wizard");
page3 = new ParameterSelectionWizardPage(selection);
page3.setTitle("Add Plan Wizard");