Hi John,
The way the RegPro module is currently programmed supports the ability to select the recurring Start Month and Day but not it doesn't have the ability to select only the day of the month you would like the transactions to occur. We are however available to program the ability for you to set the recurring day of the month. If you would like to be provided with a fixed quote to add this feature, please submit a Quote request at the following link -
http://www.smith-consulting.com/servi...
Thanks!