Is it possible to control a motion study using variable set with the equations interface.

I created a relatively complex geometry, it is parametric and can be scaled from a fixed point.

It is controlled by a global variable which scales all the fixed dimensions on the geometry and works fine 'manually'.

I am wondering if it is possible to create a motion study using solidworks equations in the motion analysis suite.

In other words is it possible to simulate volume expansion and contraction using the motion tool.

A balloon expanding for example........

SolidworksMotion Studies