利用Calibre的edit metadata命令可方便地显示与所选文档相关的当前元数据，让您可以添加、编辑或删除文档元数据。

Calibre's edit metadata command makes it easy to display the current metadata associated with a selected document, enabling you to add, edit, or remove document metadata.

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它只是执行代表用户按下删除键的命令，最后由编辑器执行并删除所选内容。

Instead it just raises the command which represents the user hitting the delete key which is eventually handled by the editor and deletes the selection.

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第三个命令 jruby script\generate scaffold Wish Editor 提供基本列表和针对存储在数据库中的 wish 对象的编辑器控制器操作（创建、编辑和删除）。

The third command, jruby script\generate scaffold Wish Editor, scaffolds the basic list, create, edit, and delete actions in the editor controller for the wish objects stored in the database.

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