FD display - position or VU meter?

I wasn’t able to determine this from the marketing info -
I understand the fader bank can be set to meter mode, though there doesn’t appear to be a scale indicated - I just assume the top LED would be 0dbfs? How do you correlate the LEDs to what your Cubase Levels are indicating? I like to track exactly -18dBfs as this correlates to 0VU on my analog path…