I'm rather new to DNN and I'm looking for a way to set up a role for which all content changes require reviewing.  I'd like it if all other users with the Editor role receive an email telling them that one of them needs to review the change that was just made and "OK" it.  Is this something that's easy to set up with DNN or will it require a lot of custom programming?  Thanks in advance.

I found the source code for the workflow in DotNetNuke.Professional.HtmlPro.dll.  Part of the problem is that it's using the email address of the portal admin as the To and From, instead of the recipient being the approver, which is baffling.  And ideally the editor could not be an approver and vice versa, but I don't see how to implement that without custom code.