Not currently, but you could always modify the PHP code to do this. The function you want to change is qa_question_create(...) in qa-app-post-create.php.
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask here, in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.