CDM+ allows you to archive data of your choosing. This post offers suggestions for what records might be best to archive.
Tips, techniques, and training related to CDM+ Membership
If a member creates an Engage account using an email address that did not exist in the database, Engage will create new address, individual, and giving unit records. The new records may duplicate existing records in the database. This describes how to merge the information.
The values for Family Status can be modified in the Master Coding System.