As an example, we closed a USD account and opened a new one. We ran down the old one until the balances over the companies were 0 then closed the account in the real world. We were happy to have the nominal on our Bank Accounts list until it was 0, but now its just an additional account always showing. A new starter incorrectly saw "USD" and coded to one of them... its been renamed but it would be tidier and safer if we could "un-tag" a couple of our "Bank accounts".
We also had (on setup before my time!) some additional Nominals tagged as Bank accounts which I don't wish to move to a different nominal due to the number of transactions and useful history there, but its awkward during Bank Feed allocation as we can't code directly to those Nominals outside of a Bank Transfer... as they think they are Bank accounts.
The function to un-tag Nominals as Bank accounts so they no longer are would be very useful please.