How to enter microns in the command line?

The documentation on units mentions:

1.2mic
1.2micron(s)

However, when I enter 1.2mic, say as part of creating a line, I get greeted with:

Unknown command: 25mic

Yeah, that doesn’t seem to be working here.

Thanks,
I’ve put this on the list: RH-81856 Units: Not recognized units
-wim

Thanks!

Good to know that parsec is supposed to work too.