Selecting Files and Folders
For selecting files and folders on your computer, PhpStorm provides a dedicated dialog whose functions are similar to those of a file browser.
In many situations, this dialog is a useful alternative to typing a path to a file or folder. All the fields in PhpStorm that contain path information have an ellipsis button next to them that provides access to the file chooser dialog.
The keyboard equivalent of the ellipsis button is Shift+Enter.