@dorin
From what I understand MuskatNuss wants a window where he can enter 4 x,y pairs for the corners of a room, a number of levels, and the height for the levels. Those numbers then should generate a project with those levels and a room with the given coordinates on each level.

@MuskatNuss
dorin created another plugin that might take you partway: the regular room plugin. Select 4 sides and give a side length and coordinates for the center of the room. It will create a square room at the given position. Not exactly what you want but better than nothing. Copy/paste the room to extra levels.