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 You can make the grid smaller/bigger with [ and ].
 When you make it smaller, you'll be able to make smaller blocks.
 Be careful though, a small grid means it's much easier to make a leak when creating the outer walls of your map.
 
...and that's the bottom line because Mate de Vita said so.
  
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 2011 Jan 11 at 09:18 UTC
 — Ed. 2011 Jan 11 at 09:19 UTC
  
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