Thank you for your support and compliment of the game
oh yeah, calling lpworld from script should be easy enough to do, maybe setBackground3D or something. I'll add in v2.15
On the second point, just to clarify, by 'bedroom', do you mean each lpworld preset, or each home building in game, or each location where you've called setBackground3D from above on regardless of whether that location is a house or not?
About walls, yeah, I tried to do that but the line tracing function from Unreal Engine is a bit buggy (i.e. finding out which wall the game is facing and whether any bedroom object is between the player and that wall, i.e. inside or outside). May try again in the future