Apple Motion 4 - Manual (Page 307)

This is an isometric operation, so it doesn’t necessarily provide a realistic perspective
effect. When you shear an object, this change is stored in that object’s Shear parameter,
which can be seen in the Properties tab of the Inspector.
Before shearing After shearing
To shear an object in the Canvas
1 Click and hold the Select/Transform tool, then choose the Adjust Shear tool from the
pop-up menu.
2 In the Canvas, drag one of the four shear handles to slant the object. The top and bottom
controls angle the object horizontally, while the left and right controls angle the object
vertically.
307 Chapter 7 Basic Compositing