To enable this viewer class, you need to add another extension to the plug-in file.

为了让该检查器类具有功能，您需要向插件文件添加另外一个扩展。

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Add another group called File under the Groups category.

在Groups类别下添加另外一个名为File的分组。

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Add another group called File under the Groups category.

在Groups类别下添加另外一个名为File的分组。

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