One Finger Snap (' is a Preference Pane that brings up the contextual menu whenever you click and hold down the mouse button. This means that you can do everything with a single-button mouse that you can do with a 2-button mouse.' Once installed, and with 'enable access for assistive devices' turned on in the Universal Access system preference and 'tap to click' turned on in Trackpad, a prolonged mouse-down on the trackpad will bring up the contextual menu. Functionally, that's a right-click in your current context (RMB, effectively). You can set the delay before the menu appears i.e. the length of time required of the mouse-down. Generally, you want the delay to be ~.5 seconds, but it's tolerable at ~.75 or even 1.0 seconds. Obviously, this also works with a mouse button--should you ever come across a USB mouse with only a single button (they do exist).
Aug 17, 2017 Mouse left click is right clicking or mouse left click behaves like right click? Learn how to fix mouse left click acting like right click in Windows 10 PC. It doesn’t matter whether you’re a Mac user or Windows laptop user, if you are using a set of keyboard and mouse for faster typing and increasing work efficiency then over a period of. Adding a Right Mouse Button to a Macbook: This shows you how to add a right mouse button to a Macbook's trackpad - click the left side of the existing button, that's left click, click the right and that's right click. Works in Windows, Linux and Leopard.