I just thought of this. How fast can you complete levels with the LE enabled?
No deleting anything. That includes things you place.
No moving gems or placing new gems.
No moving the finish pad or placing a new one.
No moving the start pad or placing a new one.
No moving teleporters or placing new ones.
You can only place up to five checkpoints.
No placing simple interiors. A simple interior is: An interior from a beginner or tutorial level, or just a rectangle, circle, or triangle. For example, the "Learning to Roll" interior is a simple interior.
No placing static shapes.
No placing time modifiers.
No placing buttons.
No placing moving platforms.
No placing gravity modifiers in the air.
No placing powerups in the air.
That is all.