You would like to know how to edit Endpoint Encryption 7.0.x Policies.
Policies can be changed in two ways with Symantec Endpoint Encryption, either through Group Policy Objects in Active Directory or through Symantec Endpoint Encryption Native Policies. If you have setup Endpoint Encryption to sync with Active Directory, the policies for all objects within Active Directory are handled through Group Policy Objects. If a client computer does not exist in Active Directory, policies can then be assigned through Native Policies. While each contains identical options, policies handled through Group Policy Objects are created and edited in quite a different manner than native policies.
Active Directory Policies
To create or edit an Active Directory policy, expand the Group Policy Management snap-in, expand your forest, expand Domains, expand the domain, and expand Group Policy Objects.