The Mouse tab

By default, when you click the mouse in Logisim's drawing area, the currently selected tool will be used. If you right-click or control-click, it will display a pop-up menu for the current component below the mouse.

Logisim allows you to modify this behavior, relieving you of the need to go to the toolbar and/or the explorer all the time. (This may also be handy if you are left-handed.) Each combination of a mouse button and a modifier key (any subset of shift, control, and alt) can be mapped to a different tool. The Mouse tab allows you to configure these mappings.

Next: User's Guide.