To edit an existing page, simply click on it once in the left tree window. To edit text simply click on it and start writing.
You can also click on the button to call up the Page Properties Wizard after you have selected a page. It allows you to add, edit or remove the Title, Image, Introduction and Description of the page, or to make the page invisible.
To add more page functions such as a page footer, or to change the page theme, click on the small triangle next to the Page Properties button:
If you can not see a page you have added in the tree, you may have closed a tree branch by clicking on in the tree. Click on to open it again.