Add Related Line Item to agreement Template

Hi All ,

I am trying to create dynamic template for agreement which will be refrence to a specific custom object which i created, and this custom object have a child object related to it.

I am wondering if it is possible to iterate throught the child object and retrieve it dynamicly using merge mapping and creating a template which will retieve the data from master object and the child object with each others.

Thank you in advace.