Retained Earnings to close out P&L

Is there a way to close out all expenses to a Retained Earnings account? I reconcile my bank balance to my Stessa transactions monthly to make sure the balances stay in sync. The only way I know to do this is to run the General Ledger report of all transactions since I started using Stessa 18 months ago. I then sum all transactions and reconcile to my bank balance. It’s not difficult but is very inefficient, especially if I have to do this “forever”.
Thank you.