Enable Bank accounts with the same currency to be a sub-account

Enable Bank accounts with the same currency to be a sub-account

Hello everyone, good day. I hope the mods can give improvement to make a bank account become a sub-account of a main account with the same currency.

For cases wherein you have multiple banks of different currencies, you just want to group them on a parent account - for example "US-BANK" and put all the other USD account into this parent account. Would be very helpful than to produce a report that has a very long list of bank accounts.