Sims will use doors and look out of windows regardless of whether they are pointing in or out.
Sims 2 windows and door sets.
Make sure that your game is fully patched and up to date for this set to show and work correctly in the game.
Find sims 4 cc in simsday.
Found in tsr category sims 4 sets.
This set has a lot of windows doors arches and shutters.
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When i place doors i tend to place them so that they swing open in the same direction you would expect to see in a real house but that is only.
As you have said windows with shutters or extra designs look better with those extra elements facing out.
They all look like the symmetric poly molecular matrix window from sims 2 this is partially a convertion of my sims3 set.