I am trying to measure objects in a step model, but somehow I cannot get eDrawings to measure.

The "Measure" item on the Tools menu is gray.

The "Product Matrix" shows a check mark on "Enable Measure" for eDrawings Viewer, so it should not be a "license required" type of issue.

Link to Product Matrix: eDrawings

Is there something special I need to do to make it work?
Maybe the measure function is broken or only works from some other type of file?
Can eDrawings actually measure items from a step model?

Thank you!