I got an idea, look above you. There is a little bar, dunno if you have seen it. It has icons on it, yeah that one, well one of those icons is Market. Just maybe, maybe, wild guess, Jon will have categories in that one.
Just maybe, wild guess. Which means no to your question
What illusion said, and how about waiting till you have more than 8 posts before you try and change the place. We aren't here just so you can sell your shit.