Articulation Robot Demo keyboard command question

I have been looking at the Articulated robot arm project (GitHub - Unity-Technologies/articulations-robot-demo) and while I understand most of the content and project, I am still stumped on this very simple thing :

Where are the keyboard command set in this demo?

A/D - rotate base joint
S/W - rotate shoulder joint
Q/E - rotate elbow joint
O/P - rotate wrist1
K/L - rotate wrist2
N/M - rotate wrist3
V/B - rotate hand
X - close pincher
Z - open pincher

I have been looking at the scripts and there does not seems to be any line of code like
if (Input.GetKey(KeyCode.A)){etc...}

Thanks in advance for any help

Nevermind, I found them in Project Settings > Input Manager