The option has in hidden mode. Not able to measure the model. Kindly suggest me to measure the model. I don't have any original 3D models to measure.
it looks like whoever published that .easm for you disabled the measure option for that file.
Oh.. Now how would I measure the part, The publisher is no more now.
I do not know a way that does not involve getting access to the original SW file(s).
Since measure has been disabled - take screen captures of Front, Top and Side (and maybe bottom and another side).
Decide on a logical dimension for one of the edges.
Scale all images based on this decision.
Sketch over the images. (I do this on separate sketches so that I do not accidently move the image(s).)
Retrieving data ...