Easy peasy advice on adjusting transactional offsets.
Here are a few screenshots explaining where to go and what to do.
So, within the Customer master record self, if you click on transactions, you will see this screen below: Do #1 and #2.
#1 Highlight the row you want to allocate to payment or clear the outstanding amount.
#2 Click on the Adjust Offset button
#1 Highlight the appropriate payment/receipt and
#2 click on Offset or Part-Offset this debt.
#3 and then on ok.
And that will result in the balances being offset.