EDIT

       this.config = config;

      // Composite composite = new Composite(parent, SWT.NULL);

       this.setLayout(new GridLayout());

       isSimpleDetailsViewActivated= PreferencesUtil.getPreferenceStore().getBoolean(IPreferenceKeys.SHOW_SIMPLE_NAME_DETAILS_SECTION);

       final Button activateCheckButton = new Button(this, SWT.CHECK);

        });

       child = new Composite(this, SWT.NULL);

       child.setLayout(new GridLayout());

       child.setVisible(isSimpleDetailsViewActivated);

             }

        });

       final Button showHybrid = new Button(child, SWT.CHECK);

       isShowHybrid = PreferencesUtil.getPreferenceStore().getBoolean(IPreferenceKeys.SHOW_NAME_DETAILS_SECTION_HYBRID);

       showHybrid.setText("Show hybrid section");

      config.setSimpleDetailsViewActivated(doGetPreferenceStore().getBoolean(IPreferenceKeys.SHOW_SIMPLE_NAME_DETAILS_SECTION));

      config.setTaxonSectionActivated(doGetPreferenceStore().getBoolean(IPreferenceKeys.SHOW_SIMPLE_NAME_DETAILS_TAXON));

      config.setTypeDesignationSectionActivated(doGetPreferenceStore().getBoolean(IPreferenceKeys.SHOW_NAME_DETAILS_SECTION_TYPE_DESIGNATION));

      return config;

   }