If I have a question for a special member of OC, then can I able to tag that member in my question? you may consider it as ” asking a question from one member only “
This is not a feature on OC. So, you cannot. Btw why would anyone want to do that? Questions asked on OC are general questions. They are answered by all members.
If you have good reason for this option, you can submitted directly your idea to admin.
Currently there is not any such option to tag someone. But I think you can mention them in your question or topic. For more help, you should contact to admin. And then share the admin reply with us.
This tagging option is still not available for us. But, you can mention that members by putting @ sign before his name.