Following items are in the menu bar at top:
Alt-F File menu
Alt-A Analyse menu
Alt-C Convert menu
Alt-M Modify menu
Alt-P Player menu
Alt-S Settings menu
Alt-W Window menu
Alt-H Help menu
The main items can also be opened by keystrokes Alt+underlined character.
The submenu items can be selected by the up and down arrow keys or by pressing the underlined character in the menu item text.
A popup menu item can also be opened by right arrow key.
Some menu items contain a key shortcut in its menu title, this key combination can be used to start the operation directly.