Select Button For most mice, the left-hand button on the mouse is used to enter selection. In this Help system, the words "click" or "clicking" are used to mean "press the Select Button". The phrase "click" means to press the Select Button ONE time. The phrase "click TWICE" means to press the Select Button (far left-hand button on your mouse) TWO times. The phrase "PRESS AND HOLD DOWN the Select Button" is used to indicate that the left-hand button on your mouse is to be held DOWN while performing a second operation, such as marking a block of text or moving a window. See the documentation for your particular mouse for more information on setting the pushbutton controls.