Where are buttons stored?

[Altsoba]

That's about the only thing I don't know how to replicate when cloning my ui to other toons.
I copy the whole wtf/account content, just modify the folde name of the toon to correspond to the account but it's just save me many hours if the buttons were placed exactly the same way (bar location) of the original toon, and I mean, imagine I have mount on bartender bar 11, 3rd button, well, I want it to be on the clone, which isn't the case so far.

Many thanks.

[Pallarfo]

as far as i know, they're serverbased.
Don;t know about bartender though..