Blender Online Product Configurator - Dynamicly Updates Geometry Is it possible to make an online product configurator using Blender Cycles rendered models that dynamically stretch and grow?

As user enters their custom dimensions (height and width) could their product's 3D model update to that size in real time?

Bonus: could objects be added as the product gets bigger? 

Like a ladder that could be any custom length, but for every extra 12" it adds another rung.  Then re-spaces all rungs equally apart.

Couldn't find any configurators like this.  Usually they only change color and swap parts.
Yes, Blend4Web offers JavaScript API which you can use to modify the geometry in run-time.

Additional objects can be added too.