In order to simply the task of manually posting credit notes (specifically after a batch creation), we have added functionality to allow for batch auto posting - located on the left hand panel of the Credit Notes grid, just below the Batch Create Credit Note option.
The wizard works in a similar manner to the batch create credit note wizard, in that the user can filter what invoices are returned and then makes their selections of which to post via the right hand tick boxes.
The wizard differs however in that the second page instead allows the user to enter any required sales ledger posting narratives.
Once completed, simply hit finish and the wizard will post any and all selected credit notes.