Hi My Suggestions: --Arrange the curtains on the other floors as in the ground floor, Also -- Pull the structure to (0,0) coordinate, --X direction remove the stiffness of the 1st basement floor, --You should get R=5 in both directions, --Tilt not saved, --Stairway support is wrong, --You can reduce roof live loads, --Normal floor live loads are low, --Enter external wall loads, --2.-3. There should be no eaves on the floor, -- If there is an elevator machine floor, enter it. Unver ÖZCAN