code: @Override
  	protected void submit(StaplerRequest req) throws ServletException, FormException {
  		initSections();
  		try {
              sections.rebuildHetero(req, req.getSubmittedForm(), Hudson
              		.getInstance().<SectionedViewSection, Descriptor<SectionedViewSection>>getDescriptorList(SectionedViewSection.class),
              		"sections");
          } catch (IOException e) {
              throw new FormException("Error rebuilding list of sections.", e, "sections");
          }
  	}
docs: Handles the configuration submission.
  
  Load view-specific properties here.