Invisible colliders

This is probably a stupid question with an obvious answer, but for some reason I can't find it in the Wiki, so I'm either not seeing it or its not there.... *scratchhead*
With the new plug-ins, the old way of making invisible colliders doesn't seem to work anymore. Is there a new way to do it?
~Kia
With the new plug-ins, the old way of making invisible colliders doesn't seem to work anymore. Is there a new way to do it?
~Kia