Hey fella, see my attached screenshot as a suggestion. Most [if not all] stairs I detail have a gap between. Any chance of having it implemented into the stair DC?
Hi Andrew,
Very sorry about the late reply to this. I was very sure that I had submitted a reply last Thursday.
See the attachment below for details on how to add a distance between the two flights of stairs.
Clear as crystal!!
Cheers,
Our Pleasure Andrew 
Kind Regards
Dean