请求zombe's modpack的build的用法

NIAOZHIC

http://www.minecraftforum.net/viewtopic.php?f=1032&t=96815&sid=757e5751f8160333a7e8383b0a86947a

• nable build mode= B   
• Item sets  1- 9= LSHIFT   + number   
• Item sets 10-19= LCONTROL + number   
• Set selection marker= X   
• Copy selection to buffer= C   
• Copy buffer to selection= P   
• Fill selection with current item= Z

Example 1 : remove all water from area

   
• set two markers to denote the area (selected area is shown as red transparent block with blue borders).   
• select water block in inventory (4th item in A5 itemset [LSHIFT+5] - if you do not have that item already).   
• hold down RSHIFT and press Z.  

  
Example 2 : fill area with cobblestone

   
• set two markers to denote the area (selected area is shown as red transparent block with blue borders).   
• select water block in inventory (2th item in A1 itemset [LSHIFT+1] - if you do not have that item already).   
• press Z.

大面积删除和大面积填充看了老半天都没看懂……英文苦手……求助