So, looking through the source, it appears this is possible, maybe (I see where you are removing the collisions just after hiding the object) - but, here is my situation:

I'm playing a map with street lights all over the place - they are really, really pretty. And they are in the way, so I am using the hider to let my AI (autodrive) workers have a little room. But it would be way cool if the light could stay there and the AI players could just ghost through them like they do fences or posts on so many maps.

Just a thought. That said, awesome work, it's indispensable on my mod list :)