Stuckr

Hello, I have a Durkopp 291 I picked up with a blown EFKA control box I replaced it with a HoHsing i70. It works great with my pneumatic/Electromagnetic controls. (Reverse, Foot lifter, Tension release, Thread cutter, etc) There are plenty of options on this machine. The motor is strong enough. I am overall pretty happy. One thing I would like to have is a manual with all the functions. The manual they sent with it only has the basic functions. I know there are more since I found them by pressing the "P" or "S" button when powering up. If anyone knows where I can find a manual with all the functions descriptions it would be greatly appreciated. FYI I am using the original Knee lifter and the 4 push buttons on the machine just needed to cut off the din plug identify the wires with a multimeterand splice it.