NO auto level and nozzel hight detection

[gcptkilla]

Dear all,

since I am using the up 2 for a while I was still wondering what auto level and nozzel hight detection mean.

I found some interessting information about a cable and some issues with it:
http://www.pp3dp.com/forum/viewtopic.php?f=18&t=36999
http://www.pp3dp.com/forum/viewtopic.php?f=18&t=23772
http://www.pp3dp.com/forum/viewtopic.php?f=18&t=41414

My problem is that I do not know what cable I need and where to plug in my ?PC? to use the auto level and nozzel hight detection?
Could anyone give me some help please?

Thanks