Two Automatic Reminder E-mail

It would be awesome to have the ability to send two automatic reminder emails.

We tend to have a good amount of people who don't show up, and I think that volunteers would be more likely to tell us they are not able to come if we were able to have CERVIS send an automatic email out at two different dates. 

Right now we have the opportunity send one out two days before the volunteer slot date, however it would be really nice if I could set it to send one out 5 days in advance as well.