When performing a Pivot, first mark the Centre of the unit. Then temporarily remove the unit from the Battlefield, and place it back on the Battlefield, facing any direction, while keeping its Centre in the same position as before. Models may be repositioned within the unit, as long as the number of files does not change. No single model can be moved further than twice its Mobility, from starting to ending position. Measure the direct path of the centre of the models' bases.