... and the tick mark is removed. Toggles work independently of any other menu items or controls. To switch them on and off you click the same one repeatedly. This is the fundamental difference from a radio button, where clicking the same one repeatedly does nothing. In model railway terms you can liken a radio button to turning a multi-way rotary switch, and a toggle to an on-off switch. All Windows programs work this way. Here for example is the zoom setting menu radio button in Internet Explorer: 2_070715_070000000.png As you can see above the actual appearance of the radio button varies in different versions of Windows, but it is always a round blob. If you have Windows 7 or later you can change the appearance of the menus in Templot. This changes their appearance only and has no effect on their working: 2_070727_110000000.png (Sometimes where the meaning of switching something on-off may not be clear, I provide two radio buttons where a single toggle would otherwise do. For example unticking a menu item labelled "show A" ...