Shearing a shape

Is there any way to be able to manually shear a roto shape without moving individual points?

EX: You have a camera move that wraps around an object. There is major foreshortening but other wise the object is rigid.

I need to be able to move the shape as a whole or the pulling of points will cause the roto to jitter unacceptably when played in real time.

Thank you,

agreed! better manipulation tools!