Revit :: Egress Path - Railing Or Detail Item

I want to create an Egress path that automatically shows me the total length and also works through multiple levels. Cadastrophe had provided a method to do that with details. This gives good results. however, I didn't see a way to use it on stairs and multiple levels (for total length inc. mezzanines etc.)
 
I created a method with railings that seems to work including multiple floors and I also could schedule it (s. attached screenshot that shows me the lower floor and also the dashed Egress path on mezzanine). The way I did it was to create balusters that are shaped like arrows, and place them every 4 ft along the railing. So yes it is a bit cheating and a workaround, but works for Egress purposes.
 
I learned the hard way that railings aren't really families like windows etc. that I can save elsewhere, but more like walls that are not saved and manipulated separately. This also seems to apply to "handrail type", Railing", and "top Rail type". So I only could play with baluster families. However, those couldn't get shared parameters. So I'm a bit limited. I also wasn't able to create subcategories for balusters. So all the railing families are not as flexible as other families.
 
My concern with using railings is, how do I include actual railing on the stairs when the stair already has the "Egress railing"? And since I can't create subcategories, my views would show the "Egress railings" whenever I show normal railings. The only workaround seems to be to manually hide the railing I don't want to show in each view.
 
I know of the Stafford Egress method, but think what Cadastrophe provided is much better (and also what my railing does so far).