Hi @Inform
The bank accounts are ordered by their nominal code.
There isn’t currently a way of marking an account as closed unfortunately, although we can certainly consider this as future development (you may wish to start a topic in the Feature Request category for this).
Similarly, there isn’t a way to hide bank accounts from the banking list either at present, only from the main dashboard.
[Edit]
There is actually a feature request already on the forum for bank account ordering - you may wish to add your vote/comments to this to show your support for it: