How to make a prop which is nocollided on one side?

I would like to make a prop which is nocollided only on one side. It is so that people may walk through it but may not return the way they came.

Is this possible?

Thanks

No, thats not how they work. I don’t know of any addons that do that either. And actually, if it was nocollided on one side, they’d be stuck in the middle. I guess you can nocollide it, then when someone walk through un-nocollide