Hey Nicxon Piaso! Hope you’re doing great. I noticed a lot of buildings tagged with "layer"—is that common in PNG? Or could it be referring to building levels? Thanks!

>> (https://overpass-turbo.eu/s/1OZt)
>> (https://wiki.openstreetmap.org/wiki/Key:layer)
>> (https://wiki.openstreetmap.org/wiki/Key:level)