The layout of the window contains the usual elements, the important ones are described below.
Titlebar
The titlebar shows the name of the currently selected editing window, respective the name of its file. This name is usually show inside "[ ... ]". If no file is associated with the window the name "<untitled>" is shown.
If the file is modified but not saved a "*" is show like "[ ... *]". If the editing mode is read only the name is shown as "> ... <".
Close box
If the application is closed by clicking on the close box while keeping the "command" key pressed the current size and position of the window is stored and used when the application is started again. On platforms which don't support the keep pressing of the "command" key the current size and position of the window is always stored.
The "command" key is also platform specific, on Windows it's "CTRL", on the Macintosh it's "CMD" and on Unix it's "META".
Toolbar
The toolbar is optionally shown if set in the preferences. It shows a combo box listing all the windows. Choosing one entry in the combo box switches to the corresponding window.
Page tabs
The page tabs allow the switching from one page (window) to another by just clicking with the left mouse button. Clicking with the right mouse button shows the context menu with the file related commands.
Popup menu
If inside a windows is clicked with the right mouse button the popup menu is shown. It shows the usual editing commands.
Drop files
If a file or a list of files is dropped onto the window each file is opened in a new page and the page with the first page is activated. Of course no file is opened twice, if any is already open nothing happens. Currently it's not allowed to drop directories, only files.
Statusbar
The statusbar is divided into several fields.