How to control the amount of last running Recurring in GL

Hi,

My name is Thao. I have a problem that needs your supporting.

Fistly, I defined a Recurring. Then I will have a Journal that generated by submitting Recurring.

For example:

1. Define recurring batch and journal

2. Define entry lines

Line1:

Sep Operator Amount

1 Enter 100

2 / 3

Line9999

3. Generate Recurring step by step, follow periods: 01-15, 02-15 and 03-15.

4. Query recurring journals:

Journal1:

Period: 01-15

Journal Debit: 33

Journal Credit: 33

Journal2:

Period: 02-15

Journal Debit: 33

Journal Credit: 33

Journal3:

Period: 03-15

Journal Debit: 33

Journal Credit: 33

--> So, how can I get the last period amount: 34. I know I can adjust last journal by manual. But, my suppliers want it is imported by auto.