I asked a question yesterday and thought it is a different question from my previously asked another question. But now I am convinced that, actually it was a duplicate question. So, I wanted to close this question and redirect the users to my previously asked question. But I couldn't find any way to close this question. So I edited the title and add "[close]" tag there and edited the answer and add a link to the previously asked question.
Now, my question is: is that the right way to do this? Doesn't the questioner has any support to close his own question? If not, then can it be added as a new feature?