I am trying to create a stair railing system that has only Balusters and no top rail. I would like to use the "use baluster per tread on stair" and have two balusters per tread. but when I attempt this with no top rail the baluster is only a few inches tall. so I created a top rail profile using invisible lines and made the top rail really small. with this top rail it works but the top rail shows in every view even though it says its using invisible lines. could use some help. would like to not have the top rail if possible.