Click Policies > Extensions.
To export a policy extension, select the policy, then click Export.
To delete an extension, a policy cannot be using it. Use the Used By column to determine the policies that are using the extension. Modify the listed policies. When the extension is no longer used by any policies, select the extension, then click Delete.
To rename a policy extension, select the extension, click Rename, specify a new name, then click OK. When a policy extension is renamed and the extension is in use by a policy, the policy is updated. This causes the Apply Changes button to be active on the Policy List page.