Perhaps I'm misunderstanding you, but you can move the positions of all the quickbars. You'll maybe want to go into Options>>Quickslots and uncheck "Dock Bar X" for each bar you want to move. This allows you to turn them vertical, horizontal, line them up, overlap them,,,pretty much however you want to move them.
If you knew all that, then my apologies.
Now, change where they dock? That would be nice...something akin to StickyBars like in WoW... If you slide one bar close enough tot he edge of another, they'll "sticky" and the second will dock to the first and line up perfectly.
I'll vote for that.