Joining stringers from separate stairs?

[Nasko]

Hi everyone,

Is it possible to join or trim stringers of two stair elements together, without having to model the stringer in-place? I've attached a screenshot of the condition. Unfortunately I cannot create multi-story stairs as the floor to floor heights are different. I attempted to create a landing at the base of the upper stair to trim the stringers, and then connect it to the upper landing of the bottom stair, but Revit won't let you create a landing at the base of a stair.

Any advice is appreciated, thanks!