Hi Powetri,
The text assumes that the object is split into “Segments” already. “Explode Segments” is the option you are referring to. To take a “Torus” and make it editable, results in a single “Segment”. In that way, each polygon moves in the same way, as it is part of the one segment.
To get the result of the Help-Content, one needs to create out of each polygon a segment. This is typically done by using the “Split” command (former done with the Spline>Explode). You find it under Mesh>Commands>Split. While using it, uncheck the “Preserve Group” option.
If you are looking for this effect, but you do not like to split it in the first place, the MoGraph>PolyFX is the way to go.
All the best
Sassi