In Aconex BIM, the design team shares models with rest of the project team through model “stacks”.
You’ll create a model stack for each model. Each stack contains the current version of the model, plus any previous versions.
You can load the current version of the model in the 3D BIM viewer, but if you need to view previous versions, you can download them from the model stack. You’ll need to upload these downloaded models back into the model stack to view them, as the viewer only shows the current versions of each model.