Cover Page
Every manual always has a "Cover Page" at the very top.
The Cover Page consists of a "Title," a "Description," and an "Image or Video."
The "Title" on the Cover Page becomes the Title of the manual, and the "Image or Video" on the Cover Page becomes the Thumbnail image of the manual.
Step (STEP)
Each manual has between 1 and 50 Steps.
A Step consists of a "Title," a "Description," and an "Image or Video."
Each Step has a "Step Number" assigned to it.