If you have request for assistance with one of the site's features, use this tag.
This tag is used to request help with the use of one of the Stack Exchange sites' features.
Please check the FAQ first as your support problem may have already been covered.
If not, try the search. Nothing? Try searching again, but with slightly different words.
If all else fails, post your support question.
support is one of the four possible mandatory tags. The other mandatory tags are feature-request, discussion and bug.