Ok, I will probably make some mods then.
Especially, I think I will make each room different, by changing textures and adding things like TV, table, PC, chair, coffee machine, mini-bar.
Maybe the elevator need to be seriously released.
Maybe I could try to make it moving the player only after he entered, then make a short travelling scene. I will make some windows bigger to have a better panorama and create a system to close it, like in Dark Meadow Zone.