Hi Mukhin, MoI does not currently have any mechanism in it to make objects transparent.

You can however, enable a "hidden-line" edge display which will draw hidden edges and curves in a faint dashed line style and allow them to be accessed even when they are behind solid objects. It gives a kind of pseudo transparency effect in some cases.

To turn that hidden line display on or off use the checkbox under View > "Display hidden lines".


EDIT: ok I didn't understand at first that you were asking about how he made the images in the tutorial above...


- Michael