Transaction Splits
You may add a transaction split to any check you write so that the split is
carried into your transaction register. The split can be used to divide payments
into different categories with different descriptions, etc. From the Write
Checks screen, click on the Split... button just below the check form.
Click New Split to create a new item for the split or click on an existing item in the list and then click edit to adjust an item, this will open the Transaction Split dialog box to allow you to enter or adjust the information accordingly.