Notes about the workbook & current behavior

• The original code referenced several sheet names that don't actually exist in the workbook (Type Code-Position, Type-Watersystems, PropertyCode1 - WS, PropertyCode 2 - WS, PropertyCode1-El). Canonical names in use now: TypeCode-Position, TypeCode-Watersystems, PropertyCode1-WS, PropertyCode2-WS, PropertyCode1-EL, PropertyCode2-El.
• FunctionalCode columns in use: Code, DescriptionSWE, DescriptionENG, Origin, TableType (origin/category — informational), PropertyCodeTable (WS/EL — drives levels 5 & 6), TypeCodeTable (RoadMarkings/Guardrail/Kerbstone/Watersystems — extends the Position dropdown).
• Workbook has only DescriptionENG and DescriptionSWE today. EST/LVA/LTU fall back to English until those columns are added.