What do you mean? Post some screenshots for us. Thanks.
But I don't understand what you are trying to do.
This?
yes, as you shown in the pic, I am trying to get rid of the vertical balusters, and change them into horizontal railing. but when I delete the balusters, it is still there. I don't know what's wrong with it.
Railing is defined in here:
I know how to add railings, but you can see even after I delete all the vertical baulaster, there is sill vertical pickets shown there. how did you get rid of all the vertical pickets?
Look at my screenshots in Message #4. Is this not what you are trying to achieve? If so, use my settings.