Sure! I got a little bit rusty in writing in English, but I will give it a try.
If you open the folder Map+Int 1280x800 upd 1\Resources\Interface\classic
and edit the building_setup_screen.xml, you will see that there are the buttons "Hire" and "Fire" - twice!
The original names are "CasinoHireButton", "BarHireButton", and of course the opposite.
Another thing that bothered me, was the size of the screen (width = 2,height = 2).
That's a little bit strange.
And the third that differs: the number of "Toggle Buttons"
Well, it depends on the version you are using, but in my .xml was "Titty" missing.