Hi,

I don't think there is a SmartObject reporting. For workflow reporting, you can enable it when you are designing your workflow. For example, if you are using K2 Studio to design your workflow, you can right-click on the canvas, go to Properties, select the SmartObject Association tab, and you should see a checkbox that allows you to create Workflow Reporting SmartObject. That should have been enabled by default.

After you deploy your workflow, the workflow reporting SmartObjects should have created automatically. You should be able to find them under the Workflow Reports category.