The Super Section plugin is used to create 2D slices through your model. (Timber Framers: think bent sections and wall sections).
Make a section cut in your model, then right-click on the resulting section plane. A new menu option, super section will be available. Click that, provide a name, and the plugin will run.
It will place the section cut on its own layer with its own scene. The new layer will be visible only on that scene - not in any existing scenes, or future scenes that you add. It also switches the camera from perspective to parallel projection, and aligns the view with the section plane for that scene.
The new layer will be the active layer when the plugin finishes. Anything you add to this layer, like labels and dimensions, will only be visible in this scene. Create as many super sections as you like. Nothing you add will be visible on any other scenes.
I suggest you create an ordinary scene tab for your model before you use the super-section plugin, to easily go back to a standard 3d view.
*** New in version 1.1.1: Support for horizontal sections.