Using quick open is very simple. Once you open it, just type the name or portions of the name of the file you want to open and quick open will filter the list based on what you typed. Hitting Enter opens the selected file, while Esc hides the quick open.

By default, only the file name is matched while filtering. If you want to match path, you need to have a "/" in the typed text. For example: "doc/index" will match all the files that contain "index" inside the folder "doc".

The documents which are already open are highlighted in bold and are listed at the top when the dialog opens. Also, when quick open shows up the previous open document is already selected so you can just press Enter and it will take you to that document.

Quick open provides a couple of config options. To access these options, right-click in the input line edit.