Hi there, I'll assume your question is "How do I use the version #5 Unity3D zSpace plugin without stereo effects?"
If that's the case, could you describe your intentions in more detail?
Are you intending to write code for situations in which the glasses are not worn by the user? In this case, the plugin should already transition to a non-stereo visualization of the scene automatically when the glasses are not within tracking range of the display.
Are you intending to write and test software from a pc that isn't a zSpace model? If this is the case, I wouldn't recommend it. You really do need a zSpace display to write and test software in a practical manner for the platform.
Please feel free to describe your situation in more detail and I'll be happy to provide more guidance.