I found a thread with a script for volume calculation - from Max Smirnow, I guess...
Do I need Java Script for working with it? Or are there alternative ways doing that calculation? Because I do not got JS on my computer

Hi Mala, you do have JavaScript on your computer, it's built into every web browser and also into MoI as well.

But you don't need to use any script for that, MoI v4 has a built in volume calculator. You can access it by selecting your solid and then push the "Details..." button in the upper right area of the main window:



On the Object properties dialog, push the "Calc" button under Volume:



When the volume value is displayed you can click on it to copy the value to the clipboard.

- Michael

This is very cool.
What is meant by "area"? Surface?

Yes! aera = surface in Unities used! So maybe 13 cm2, 107 m2 , 21 m3 for a surface 5 mm3, 15 m3 for a volume etc...
or 17 if there is no unities used

Ps the native Aera/volume is fine for direct result but not for specific material, density etc...! ;)

Thank you Pilou.
In detail: If I work in mm the area is mm2 ?

of course yes!