@Barry, thank you for a tip. I try this, but in this type of niche_shape (arch) it doesn't work. maybe I overlooked something i don't know.
So i tried "SenecaDesignLLC" method (thank you again) with tube. (i hope this is the way) Unfortunately I have problem with tube geometry - it is deformed.
finally I find solution. Not nice but it works.
wallniche with method 1,A,B,....Subgroup with Prism A,B(prism interact with wall) and Ruled.
If someone have a time try to find smarter solution with this parameters.
Thank you all...