Joskin auto bale loading trailer issue

[traceybond1964]

I want to use the Joskin auto bale trailer for making it easier to load and unload my pallets of wool, seeds, and fertilisers, but I cannot use it because when I attach a joskin auto bale loading trailer to a tractor, I don't get more options, after hitting the x key, and then the z key in the left hand screen corner, options pallets, square bales or round bales, like on the tutorial video on youtube, I don't know why I cannot do it, has any body had the same problem and got over it?

I Have windows 10 and use a game pad that i use for farming simulator 17, Can you please help me?

Tracey game fan