gethiddenproperty
Reads a hidden (non-scriptable) property from an Instance.
function gethiddenproperty(instanceinstanceInstanceThe target Instance.: Instance, propertypropertystringThe property name to read.: string): (any, boolean)anyThe value of the property.booleantrue if the property is hidden (non-scriptable).Usage
Read a hidden property
local value, isHidden = gethiddenproperty(workspace.Terrain, "MaterialColors")
print(value, isHidden)