Identifying Your Keyboard

So, I’m having issues on setting up a mouse I had just bought. I know the mouse works though so I used it on my old laptop but when I try to connect my USB C mouse to my MacBook and do the identifying keyboard setup, the one where you have to press the key that’s on the right of the Shift key in the left side of the keyboard, I have nothing to press because there is no button on the right of the Shift key. So I’m stuck. If anyone could help me solve this problem, that would be great.