There are many different scenarios in which you can find yourself compelled to repeatedly left click your mouse - to activate a button on a web page, scroll through a document one page at time, or to accomplish some other task. There is a way to get through a tedious situation like this more rapidly.
The Tip of the Night for May 9, 2017, discussed an open source program for Windows called AutoHotKey. If you download AutoHotKey here, and install it, you'll be able to run lots of scripts which change how your Windows system functions. This script:
. . . placed in a text file renamed with the extension '.ahk', and then double-clicked . . .
. . . will allow you to left click an endless number of times when you have CTRL + G pressed down.