public PortfolioPage clickExitAndSave() {
   getDriver().findElement(exitAndSave).click();
   PageHelpers.waitForSeconds(1500);
   return new PortfolioPage();
 }
 public EditPortfolioPage addNewChapter() {
   PageHelpers.waitForVisibility(newChapter);
   getDriver().findElement(newChapter).click();
   PageHelpers.waitForSeconds(3500);
   return this;
 }
 public EditPortfolioPage selectMakePublic() {
   getDriver().findElement(makePublik).click();
   PageHelpers.waitForSeconds(1500);
   return this;
 }
 public boolean materialMessageIsDisplayedInPortfolio() {
   PageHelpers.waitForSeconds(1500);
   return getDriver().findElement(materialMessage).isDisplayed();
 }
 public EditPortfolioPage clickVisibilityButton() {
   PageHelpers.waitForVisibility(visibilityButton);
   getDriver().findElement(visibilityButton).click();
   PageHelpers.waitForSeconds(1500);
   return this;
 }