If you want all of your renewals to be at fixed points in the year, such
as semester ends, you could use multiple "year relative" dates, like
* Renewal=06/01,12/01,Delay(15)
for renewals on June 1st and December 1st each year.
 
Mark R. Williamson, Rice U., Houston TX; [log in to unmask] or @RICEVM1