Have you released an action to the public, but now you'd like to redirect to another action instead? If so, read on!
For this scenario, you'll want to set the unwanted action to Inactive. Then, in the redirect link (in the 'Follow-up' tab) of the old action, you can actually just place a link to the new, active action. This will cause supporters, who access that old action, to automatically redirect to the new one. Problem solved!