Changing Measurement Units

I have the latest version of VIRB Edit installed (Version 3.1.0.2) on my computer. I can't find anywhere to change the units to metric, and I can only display miles/feet etc. on my videos. I am using a VIRB Elite camera, and it is set to metric in it's settings.

I read
You can change the units in VIRB Edit's settings. Menu > Settings > Units.
in this post on this forum, but my settings page does not offer the "Units" selection. On my settings page there are only selections to change the location of saved videos and clips.

Is anyone else having this issue?