Macro «auto construction v1» for «Minecraft»

Anyway, here's my first Macross. Sorry this is so far the first version then try to make it easier to use and faster: 
at the moment it is fully automatic. use only for straight roads ( the diagonal is not allowed, will soon try to do the diagonal construction and double) 
Hope it will help many. 
USAGE: 
1)stand on the edge of the block by holding shift. 
2) send the cursor to the approximate center of the block 
3) release shift and use the Macross (the first block state not needed) (works Macross 1 mode, i.e. when the clamped key) 


But there is one bug associated with moving the cursor 
in the future popytat fix) 
Good LUCK!