I am setting up my new IM Nuvo 100 EXT with their APS stand (aluminum T-slot extrusions). I want to add some supports for the plumbing and attach them to the T-slots in the stand. I am a complete neophyte when it comes to working with T-slots. There are two different size slots on this stand. I am trying to find out what hardware I can use to attach my plumbing supports to either of these slots. Please be specific and assume I know nothing (which is the case).