I appreciate the additional details. Allow me to help you remove the transactions in the reconciliation window, Steve.

Please note that you can only reconcile bank and credit card accounts in QBO. Because of this the Reconcile status columns can only be found in those type of registers.

Instead of opening the A/R and A/P accounts , you can go back to the bank register and add the column so you can change the status of the transactions. Here's how:

1. Open your Chart of Accounts and look for the bank or credit card account.
2. Select View register.
3. Click the small Gear icon in the upper-right hand corner, then check the box for Reconcile Status. 

Once done, look for a column with a checkmark on its header. Then, manually change the status to R by following the steps in the previous response. 

You can also take a look at this article for more details: Undo or Remove Transactions From Reconciliations in QuickBooks Online.

Let me know if you're able to clear the transactions on the reconciliation page. The Community is always here if you need anything else.