Let me add some additional information to this specific issue, @nappybeth.
The bank balance is your bank's actual balance from the last bank feed update while QuickBooks balance is the total balance of all bank transactions that you’ve added or matched to QuickBooks. Basically, the QuickBooks bank balance dashboard will show all the transactions you have entered. If you don't want your future transactions to affect the bank balance, you may not record those future transactions in QuickBooks.
Also, the option provided by vpcontroller is still a product suggestion. Keep in touch with the latest product and feature update by visiting our QuickBooks official blog.
You may also learn how to review your beginning balance if you've already reconciled the account in the past: Fix beginning balance issues if you've reconciled the account in the past QuickBooks Online.
Please know that you're always welcome to post if you have any other concerns. I'll be around to assist you further.
