If you export all the object alternatives from your 3D modeling tool to Shapespark, you will be able to use the Switch objects extension to cycle through the alternatives by clicking the extension trigger.
For the alternatives not to cast shadow one on each other, you will have to enable the Isolate shadows option for each alternative. The downside is they won’t cast shadows on the surrounding, either, so they may stand out from the surrounding a bit.
The presentation in the “How it works” area of our demo tour: 3D walkthrough demo room by Shapespark is based on the Switch objects extension.
Another approach is to use the Custom hide in views option to make all the alternatives hidden but one in a certain view: Example room by Shapespark