We just switched from the desktop version to Quickbooks Online, and all the transactions we have entered so far were entered manually under a bank account.  We just linked our bank account for the first time, with the help of QB customer service, and they recommended setting up a new bank account for the linked bank information.  The problem is, we need to reconcile a year's worth of transactions (due to staffing changes over the past year this has not been done), but I can't use the bank feed to reconcile transactions that were entered in manually under the other account.

To reiterate, these are both transactions from the same bank account, but one has manual entries, and the other is linked to the bank feed.  How do I merge these without losing information?  And which is the best one to use as the primary?