Spots module: Contacts and Opportunties missing

I have discovered that the Spots module can be a helpful way of reporting. Spots :: SuiteCRM Documentation. However, most of my data is in the Contacts and Opportunities modules, and Spots does not seem to support these.

Is there a way to add them? Can I copy files from the other modules for this? Just adding Contacts in the spots_areas table does not seem to do the trick.