This video demonstrates creating an email wizard skin in the Skin Designer.
Timestamps:
0:59 - Search/Dept/Unit/My Skins Tabs
3:37 - Creating an Email+ Wizard Skin
5:58 - Files/Access Tabs
7:52 - Usage/Privileges Tabs
8:49 - Building the Skin on the Skin Tab
13:09 - Uploading Header Image
16:34 - Creating an Image Map
19:44 - Background color/Footer Information
24:32 - Social Media
27:39 - Applying an Email Skin