I just got MoGraph myself and decided to try to solve your problem. (At least what I think it is) It didn’t take 20 secs more like 3 minutes. Yes this is a great piece of software. It has literally paid for itself with my first job. I’m new to this module but anyway here’s what I did:
Goal: create a larger number of vibrating objects in a cylinder shape
I created my object to vibrate first – a small sphere
Then I created the cylinder object in the size I wanted
Add a “Cloner Object” and make the sphere child of it
In the “Cloner Object” settings – Change the mode to “Object”
Drag your cylinder shape in the slot for the Object
This will give you a grid of spheres in the shape of your cylinder
In the Cloner is where you would change the size of these clones – but no need to go crazy until you setup the motion
With the Cloner selected in the object list – choose a random effector – this is to vary our objects – adjust to taste
Finally select the Cloner again and add another Random Effector – change the random mode setting to Noise or Turbulence – voila vibrations – adjust the Animation speed setting to taste
In the end you’ll have 2 Random Effectors modifying your clones – one effector to ranomize the grid and the other as a random animator. No keyframes
Hope it helps.
peace.mark