Multiple buildings on same project

We are a Design/Build Contractor and normally use Hevacomp Design Database for steady state heat losses/gains. We are now looking at transitioning to Open Buildings Designer Energy Simulator.

Many, in fact probably most of our Projects involve light industrial buildings on business park developments, where we have two or more buildings with exactly the same fabric characteristics, design temperatures and floor levels, but different sizes and orientations, on the same Site.

How is this best dealt with in the folder structure of OBD? Can different Sites be created within one Project? Or would it be a case of different Buildings within one Site? Or would we need to create each individual building as a separate Workset?

The setup will be with the Projects saved to a shared network folder, which we have set up following the BIM Management 301 training video.