Is it possible to copy data from Potentials to Events

Is it possible to copy data from Potentials to Events

I have custom data fields in my Potentials area that I also want in the associated Events for the same potential.  Is there any way to avoid entering the information twice?
 
For example,  I have a custom field in my Potentials called "Programs".  Once it has data, I would like an easy way to put the same data in an identical custom field under Events.
 
Is such a thing even possible?
 
My reason for having duplicate data is so that I can have the data for custom emails and mail merge from the Potential but also have it sync from Events with my Google calendar.
 
Any help would be appreciated.  Thanks!