File → New (Ctrl-N or F N) allows you to create a new untitled schematic page. The same as Page → New. See Creating new and opening existing schematic files.
File → Open... (Ctrl-O or F O) opens a dialog box for choosing and opening an existing schematic or symbol file. See Creating new and opening existing schematic files.
File → Open Recent (F O) lets you open one of the recently opened files without the need of searching it in the file system.
File → Save (F S) is used to save changes in your schematic page on disk. See Saving schematic pages.
File → Save As... (F A) allows you to save the page you edit under another name.
File → Save all (F L) saves all unsaved pages. Anything specified above about the Save diallog matters here as well. You should only note that the Save As dialog is opened for each of untitled pages.
File → Print... (F P or Ctrl-P) opens a standard GTK printing dialog in which you can preview and print schematics. See Printing and exporting schematics.
File → Write Image... (F I) can be used to export schematic and symbol pages as images. See Printing and exporting schematics.
File → Invoke macro... (:, colon, or E Shift-:) allows you to execute some small excerpts of Scheme code interactively in GUI. See Interactive work with Scheme code.
File → Execute Script... (F T) allows you to execute a Scheme script file stored in your file system. See Interactive work with Scheme code.
File → REPL... (F Shift-R) lets you hack
your Scheme extensions interactively, using the REPL in the background
terminal where you started lepton-schematic. See Interactive work with Scheme code.
File → New Window (F W) allows you to
open a new window of lepton-schematic. See Working with windows.
File → Close Window (F C) closes the
current lepton-schematic window. See Working with windows.
File → Quit (F Q or Alt-Q) closes
all open windows of lepton-schematic. See Quitting the program.