Need some help about the 1300MDC overlocker

Hello !
It seems like I definitely can't thread my overlocker and the manual doesn't helped me about it...I don't know how it ands and where to put the threads after the color guide... Besides, I'd need some help about the screen...How does it work? How to put the coverstitch mode?
Please help me to find out how it works and how...to start with !
Thank you so much guys for your answers!