RE: How to recover a edit/select document for payment batch
I suspect your issue is that the check batch (not the batch that selected the vouchers for payments) may still exist. However, those would typically be the same batch.
What you should have done is used the check update screen pressing F3 on the batch number and seeing if it came up with a batch. If so, then you could do a delete all to basically undo the assigning of checks to those vouchers. By deleting the payment selection batch I suspect that you no longer can find the batch on the check update screen but you have a set up unprocessed apchecktran records corresponding to the aborted check run.
If the check update screen still shows you batch, select it and do a delete all. However, I suspect it will not be there at this point. If it is available on the check update screen let me know and we can work out what we have to remove using SQL queries. If we need to do that then you, or someone at your location, needs access to SQL Server Management Studio in order to run the necessary queries.
If have not encountered such a scenario so I do not have such queries already built but I could create such a scenario on one of my test systems.