How do you clear Playbook Previews in San Diego?

[jglez1]

My company is using PAD and Playbooks for automating processes, and I've been using the test feature inside of PAD which has been pretty nice

But I noticed the Playbook tests/previews don't disappear even when the Process completes and I don't see a clear or delete button.

Does anyone know how to clear these? We're using San Diego.

Thanks!

[jzwang]

You can delete the Process Execution records (sys_pd_context) by filtering Input Record