The Domain Editor is to create you own Domains, edit ones you have already made, and in the future will allow you to edit existing Domains (from other data/list files).
The New button will allow the creation of a new Domain.
The Edit button will allow you to edit the selected Domain (Domains created within this Domain Editor only at this stage).
The Delete button will remove the selected Domain (Domains created within this Domain Editor only at this stage).
The Copy button makes a copy of a selected Domain. In this way you can slightly modify an existing Domain and give it a new name.
The Close button will allow you to exit back to PCGen.
Domains added will be saved into the customDomains.lst file.