The Window menu

Minimize  Ctrl-M

Minimizes (iconifies) the current window.

Maximize (Zoom on MacOS)

Resizes the current window to its preferred size.

Close  Ctrl-W

Closes the current window.

Combinational Analysis

Shows the current Combinational Analysis window, without changing any of its contents.

Preferences

Shows the Application Preferences window.

individual window titles

Brings the respective window to the front.

The Help menu

Tutorial

Opens the help system to the "Beginner's Tutorial" section of the Guide to Being a Logisim User.

User's Guide

Opens the help system to the Guide to Being a Logisim User.

Library Reference

Opens the help system to the Library Reference.

About...

Displays a window containing the version number, mixed among the splash screen graphics. (On MacOS, this menu item is under the Logisim menu.)

Next: User's Guide.