You can use the Forward command to change the magnification of the model. It increases or decreases the distance between the current point of view and the pivot point. The position of the pivot point limits the distance that you can move forward or backward.
To adjust the distance between the current point of view and the pivot point, use the Drag Distance indicator. The Drag Distance indicator has two marks on it that show the start and destination distances from the current point of view. The orange position indicator shows the current traveled distance. Slide the indicator forward or backwards to decrease or increase the distance towards the pivot point.
Display the big Tour Building wheel