Computer Keyboard Input?

Hi, this is the first time I have posted on here. I am using Cubase Pro 8 and I am trying to find the ‘Computer Input Key’. On the help notes it says that it is on the toolbar but I cannot see it anywhere. Can anyone help me, is it in a drop down menu or where???

A computer keyboard is an input device used to enter characters and functions into the computer system by pressing buttons, or keys.