File | Settings | Google App Engine
In this section:
|Projects||This pane displays the list of projects, opened in the same window. The first project in the list is the primary project.|
This pane is not shown, if there is only one open project.
Google App Engine support pane
|Enable Google App Engine support||Select this check box to enable Google App Engine support. If the check box is not selected, all the following fields become disabled.|
|SDK Directory||Specify the path to the folder where the Google App Engine SDK for PHP is installed on your machine.|
|App Engine Account Settings||In this area, specify the Email address and password that give access to your Google account.|