Newbie question: What is this?

[Orange]

Newbie warning!!!

This may be a very silly question, but what is the device alongside the throttle in the attached image & what is it used for please?

 

[Momac]

Autopilot follow up lever - Simrad FU 50 ?

 

[Orange]

Thanks. So it overrides the autopilot?

 

[maverickofpoole]

http://www.nuovamarea.com/files/product manuals/Simrad/FU50_Steering_Lever_Manual.pdf

 

[Orange]

Thanks!