Covering up the hole above staircases.

[Twinmum]

OK, I may be just loosing it here, so bear with me.
When you place stairs, there is a 4 x 1 cutout in the floor that can't be used. Now I am sure that you used to be able to lay flooring over that gap to make the hole smaller.  I also recall that if you wanted to place anything on this flooring, you had to use the moveobjects cheat. So here's where I'm confused. Has something been changed because I just tried to lay one piece of flooring to make the gap 3 x 1, but it won't let me place it. I turned on the moveobjects cheat and it still didn't work.
Am I going crazy or what. I'm sure it was possible.
In this picture, you can see how the stairs go down under the bathroom. I'm trying to re-create that, but it keeps taking out the piece of flooring where the toilet is in this image. BTW, this is a Sims 2 house in the pic.

[Twinmum]

This is crazy. I went into an older build of mine and it had a 2 x 1 hole over the stairs, with a fireplace over the end of the stairs. I took the fireplace out and removed the floor tiles then just replaced them (without any cheats activated). Then I was able to put the fireplace back in place with the moveobjects cheat on. Yet when I go to a new build, I just can't add floor tiles over the hole. Why on earth would they change something like this, and why does it still work on older builds. I think this needs more investigation. Hopefully someone might be able to shed some light because I'm in the dark here.

**Edit**
OK, I'm putting this down to one of those quirky annoying things in Sims that sometimes work and sometimes don't. I was trying all sorts of things as to why it was doing what it was and thought I had come up with the answer. I thought it was something to do with the stairs going through a basement, because every time I've done it that's where it was. But testing that theory failed and not sure why I tried, but I went back to the house I was trying to build and it worked on the upper level away from the foundation! So I quickly saved it there and then with the stairs and floor in place lol. I'm still interested in hearing other people's experience with this.