[How To?] How to move post control to the top?

[Serpius]

In the default MyBB theme? I don't see one. 
In fact, I don't see one in my custom theme. The Reply button is at the bottom as usual.

Lol.
There is one on top and bottom.
https://i.imgur.com/eqj9anh.png

Not sure what you were looking at, but here at MyBB.com, I don't see a reply button at the top in the default MyBB theme.