While it will allow two windows to be placed on one section of wall, it will cause some strange visuals. These are the live edit items and are things like trees, boats, fences, and other weird things you sometimes see off in the distance.
The Sims 4: How to Unlock All Items (Debug, Live Edit, Unlocks).Insert one of these 3 cheats – “bb.ignoregameplayunlocksentitlement”, “bb.showliveeditobjects”, or “bb. Enable your cheats with “testingcheats true”.
How to Unlock All Items in Sims 4? Open the command console box by pressing down SHIFT + CTRL + C on your keyboard.Cheats To Unlock All Items In The Sims 4 – Complete Guide.