Yes, the tool exists, but it has changed recently, and no longer looks like this.
The aiming system itself has changed, it can now support more than just 9 poses, so the tool had to be extended quite a bit. It seems that the documentation hasn't caught up yet.
This is what it looks like now, and the menu where you can find it.
Beware, it is a bit tricky to get it all working and find the right settings.