I’m unclear what exactly you are asking for- an overlay showing the numbers of all 3? Because IdentifySecondary and IdentifyTertiary rely on seeding from IdentifyPrimary the number of objects of all 3 should (in most cases) be identical. In any case, the data modules (either ExportToSpreadsheet or ExportToDatabase) should have the information that you want about the count of all 3 kinds of objects in each image.
Does that help at all? If not please clarify further- feel free to look here for what we usually request for help diagnosing problems.