This looks awesome! I'll have to try playing with it some time soon. Thanks for sharing :)
Quick thing about speech balloons--there is a cheat to get rid of them, but I can't remember what it is because it requires an EP that I don't have (although you probably have it). I think it's "showheadlines off" or something to that effect, but I'm not sure off the top of my head. What I do instead is just use the InSim wardrobe adjuster: if you've got a sim with a speech bubble or a relationship plus/minus or a memory or whatnot floating above their head, just click "Change to Everyday (or whatever the sim is wearing at the time)... [Sim's name]" and any overriding icons will vanish. The corresponding Blender function would probably work too.
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Quick thing about speech balloons--there is a cheat to get rid of them, but I can't remember what it is because it requires an EP that I don't have (although you probably have it). I think it's "showheadlines off" or something to that effect, but I'm not sure off the top of my head. What I do instead is just use the InSim wardrobe adjuster: if you've got a sim with a speech bubble or a relationship plus/minus or a memory or whatnot floating above their head, just click "Change to Everyday (or whatever the sim is wearing at the time)... [Sim's name]" and any overriding icons will vanish. The corresponding Blender function would probably work too.