Custom Settings Deployment
The Custom Settings step allows users to deploy the data held in Custom Settings objects. IDs such as that of Users, Profiles and the Organisation Id for Hierarchy Custom Settings are also mapped in the destination environment.
E.g. Environment Variable:
Source Org: AdminUser = "firstname.lastname@example.org"
Destination Org: AdminUser = "email@example.com"
In the custom setting fields, any occurrences of "firstname.lastname@example.org" would be replaced with the value of the Destination Org: "email@example.com"