Balusters on stair treads w/ custom railing

[TBIDesigners]

Hello!

I am trying to create a custom railing for my staircase but I cant seem to figure out how to turn it from a  cap and rail to just a custom railing on the stair treads themselves. 

I want to enclose the staircase and with a wall but "closed underneath" doesn't work because it is a 3 story stairwell I am trying to create. below is what I have when creating a custom railing and the second photo is how I want that custom railing to finish on the stairs?? Any advice???

 

[DBCooper]

That looks like you have a "pony wall railing" next to the stairs set to follow them.  Just delete it and setup the railing through the stair dialog.  If you need a wall to close the space under the stairs, just draw a new interior wall underneath them.