how to do a left click on track pad without using a mouse, on Macbook Air Yosemite
how to do a left click on track pad without using a mouse, on Macbook Air Yosemite
OS X Server (Yosemite)
MacBook Air trackpad - Apple Support explains the various ways to use the trackpad. For example what used to be called a "right click" is called a "secondary click". "Left click" is just click.
How to use the Force Touch trackpad - Apple Support explains additional ways to customize how you would like the trackpad to work.