Thanks for your reply. 
First of all, my colleague did MAKE a key with 500$  multitool wheare I couldnot make a key with over 5,000 $ AutohexII.
 So it is not a matter of key. 
Second, I tried option 3, then I couldnot do any thing. thus I tried option 4.
 I am not sure Autohex II can do anything for BMW mini. 
I was reading every single detail in Microtronik Webpage, but there was no single clue. 
Any expert, please tell me something!