Civtools for CE - Flatten elements to the same Z

I seem to find many subjects that tiptoe around what I am looking for. I have a great MDL app for SS3 that is Civtools I would use to flatten specific elements in Microstation to a specific Z elevation. Is there just no update to this? If not, is there a command in CE that enables me to select specific elements and set them all to the same Z.

Thanks in advance for the help!