“Section analysis” (viewer toolbar) creates a section plane: choose the X, Y or Z axis, or a section box, then drag the handle to slide the plane through the model. It is the easiest way to look at a floor or a room from above. Click the tool again to remove the section.
“Measure” shows the distance between two clicked points, the angle between two edges, or the area of a face. Values are in the model's unit and stay displayed while the tool is active; “Clear” removes them.
“Explode model” moves the elements apart to understand an assembly. Remember to reset it before placing an observation: placement is refused while the model is exploded.
