On Premise user access to a cloud "dummy data" instance?

At some point in the past we stopped installing a specific on prem training environment with Epicor data (we have a Pilot and Test env, but not one with the Epicor dummy data). I believe we stopped this practice because we were told that we could access an environment via cloud if we needed to see / test with the dummy data.

Does this sound familiar to anyone? Or, do I have to install an on prem instance, filled with the Epicor dummy/seed data?