original comments in recurring invoices

Hi,

I have a client that gets two recurring invoices from me, and it was pointed out to me that the invoices I am sending them do not indicate which invoice is for which service.  The comments in the original invoice do note this information, but it is not being included in the subsequent recurring invoices.

I see this topic was covered way back in 2009:

https://frontaccounting.com/punbb/viewtopic.php?pid=3008#p3008

wondering how I can implement this?