You can adapt the status schema of a case type by adding or removing statuses in the existing status schema, or by creating a new version of a status schema. Adding or removing statuses allows you to customize the support process for different case types. Creating a new version of a status schema enables you to modify the existing status schema without affecting the cases that are already using it. You cannot copy or change the existing status schema directly, as this would impact the existing cases and their service level agreements. References = Creating the Statuses for Cases, Creating a Case Type