How to get more than 30 memorized numbers in a subtotal row
When adding a Subtotal Row, there is a field for Memorized Number which may be incremented by using the up arrow icon. Using this arrow will increment the value of the Memorized Number until the number 30 is reached. Workaround this 'limit' by clicking into the field and typing the number or by copying and pasting a number higher than 30 into the field for the Memorized Number.
To add a Memorized Number in the Subtotal row go to Ledger Report Writer → Rows select Subtotal then click the Add Row button.
Below is a screenshot of Subtotal → Add Row where Memorized Numbers are entered.