You can designate any managed device in your ZENworks Management Zone as a test device. When a policy is assigned to a test device, the Sandbox version of the policy is applied, not the Published version. If no Sandbox version exists, the Published policy is applied.
To designate a managed device as a test device:
In ZENworks Control Center, click Devices.
In the Devices list, select the check box next to the target device, then click Action > Set as Test.