Here is what I want to steps to look like.
Basic steps and the bottom part should be one face.
What I did:
Created 2 planes and used array modifier for the steps.
Created one big edge for the bottom part. subdivided it and filled the face in between bottom edge and steps. -> Leads to some weird UV map and material looked weird
Extruding the steps down and using boolean, didnt work for some reason? (Only worked with subdivision modifier)
Extruding the step edges down. But now I got a "step-like" Edge on the bottom part. Then I merged the two vertex above another. But now I want to bevel the edges and for some reason on some parts I have double edges that go all the way down and not only like the red edge in the picture.