No worries.
So to confirm - a batch was entered with a posting to Account A, where the intention was to update an existing Account B instead. And you were wondering if you could simply edit the posted transaction to change the account from A to B, with the required audit trail.
If this is what you are looking for, I'm afraid that this was not included as part of the upgrade feature set of Adagio Ledger 90C. In order to remove the effects of a posted transaction, you must Unpost the batch and 'Delete Transactions'. Then make the correction to the Unposted batch and then re-post.
One new feature that was added was to Recover batches that were accidentally deleted and not yet posted.
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Regards,
Softrak Tech Support