Create a stair with varying thickness

[anacffaria]

Hi
I'm quite new to Revit and I'm trying to model some stairs. I've been searching online on how to solve the problem that I'm having at the moment.

I need to do a run of stairs that varies in thickness with a landing that varies as well. To be more precise the run should start with a thickness of 140mm and increase up to 180mm while the landing starts at 180mm and finishes at 220mm. The  risers should have a constant height and the stair shoud be "stepped".

Is this possible? If so can anyone explain it to me or direct me to some good content that allows me to do this?
Thanks in advance!

[L.Maas]

You could create stairs with thinnest floor thickness. Then you could add a floor element to vary the thickness

Alternatively you could model the stairs as a loadable family and not use the stairs tool

[anacffaria]

Thanks for your help!

I did a family using extrusion to build the shapes I needed. It worked out great apart from one detail I can't figure out.
My whole stair is in one family, but for taking drawings I'm taking view plans by portion. The thing is, my stair won't be hidden below my bottom plan in the view range. Do you have any idea on how I can solve this? 

Thanks!