How to create overlaps stair

[Anonymous]

Does anyone have an idea how to create overlaps stair.
The rise is 6 m. The stair is in tree stairways. 1 stairway with 12 steps, 2 - 3 stairways with 11 steps.
I created two stairways but the last landing must overlap the lower stairway. There the stair tools doesn't work.

[insideru · Accepted solution]

It's a known limitation of the tool. You have to draw another stair for the 3rd flight.