I have successfully imported a step file (3D Box model) and decided to hide it to view components better. I now want to restore the 3D transparent box but I can't find anywhere to access this transparent non existent unit in order to remove the transparency. I am not at all able to select it. Please help! The board still shows components that it clashes with.
So I figured it out. At the bottom of the altium window -> PCB -> PCB List ->The 3D body is susally on Mechanical Layer 1, look for bodies with opacity of 0, double click and edit!!!!