Boolean Operation

      Boolean operation includes join,common, not common and subtract.

   Join

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    Command:

      Menu【Modify > Join】                    Modification Bar

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Common

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      Command:

      Menu【Modify > Common】             Modification Bar

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Subtract

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      Command:

Menu【Modify > Subtract】               Modification Bar

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Not common

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       Command:

      Menu【Modify > Not Common】          Modification Bar