To clear out any check marks for cleared activity, it's possible to take either of the following steps:

A. To remove all check marks from check boxes for all payments currently marked as cleared:
1. In Banks, click reconcile this account
2. At the top of the page, click "Unmark All" to remove check marks from any "cleared" payments that have not already been reconciled

B. To remove check marks from check boxes on multiple payments:
1. In Banks, click reconcile this account
2. In the window click and drag to highlight multiple checks
3. Right click and choose unmark selected

To then update the statement ending date or statement ending balance:
1. In Banks, click reconcile this account
2. Click Reconciliation > Go to reconciliation input and update the statement end date and ending balance if need be
3. Select Continue reconciliation