There are 2 different ways you can change the page title of a page:
Once logged in, click on the PAGES button in the left side User Menu.
Click on the name of the page you wish to change the title of.
You may now change the title at the top.
Click Save, at top right of pullout panel.
You can also change the title of a page by going to the actual page on the website and clicking the EDIT PAGE button at top right of page.
There you will see the title field you can change.Once done, click the SAVE button at top right.