predefined property default value

Hello KM gurus,

I am creating a new predefined property in KM, of type Date, and I have a question about the Default Value field. Is there a way to make the default value of the property one year from the created date? Or if this cannot be specified within the Default Value field of the predefined property, can we accomplish functionality like this using an XML form?

Thanks in advance for any help,

Fallon