Give the new switch a name – for example, ‘ Next’.In this example we will use the right arrow key of the keyboard. The system will ask you to “Press your switch now…”, your new switch can be a button on the mouse, a key on the keyboard, or a key or button on any other device that connects to your computer.Click the ‘ +’(plus) button or press ‘ Tab’ until the ‘ +’ (plus) button is highlighted and press ‘ Spacebar’.It is possible to control the whole computer with just one switch, but it is more convenient to have two or more. You can change a switch’s name or its key by double-clicking on it in the list or using the ‘ Tab’ key to highlight the switch and then pressing the cog icon to open its settings. You’ll see there is a default switch already set up - ‘ Space Input’, which is used to select an item and is activated by pressing the ‘ Spacebar’.To see what switches area available, click the ‘ Switches’ tab or press ‘ Tab’ to highlight the ‘ General’ tab and use the arrow keys to select ‘ Switches’.In the left hand column, under the ‘ Interacting’ section, select ‘ Switch Control’ or press ‘ Tab’ to highlight one of the items of the left-hand list and then press the up and down arrow keys to select the ‘ Switch Control’ option.

(See the article Open Accessibility Preferences on this website for more information.) Open ‘ Accessibility Preferences’: Apple Menu > System Preferences > Accessibility.This article contains the following sections:

How to use mac os 10.12