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Is it possible to create different categories of questions?
An example of what I want to achieve: http://www.guj.com.br/
I don't think that sub-tags are supported yet. Maybe you can raise an issue about it. For instance you could use pages to implement it (an URL displaying only a limited set of known tags).
Use mini-Markdown format: [link](http://example.com) _italic_ **bold** `code`.
Comments must have, a maximum of, 600 characters. If you find necessary, make use of links instead of copy texts, or even edit your question/answer to provide further information
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