Determines transaction type, item type and (for residential) building type. The actor maps this to transaction_name, item_type and building_type_options[] automatically.
Default:property-for-sale
Options:property-for-saleproperty-to-rentapartment-for-saleapartment-to-rentmaisonette-for-salemaisonette-to-rentdetached-house-for-saledetached-house-to-rentplots-of-land-for-saleplots-of-land-to-rentcommercial-property-for-salecommercial-property-to-rentparking-spaces-for-saleparking-spaces-to-rentvarious-properties-for-salevarious-properties-to-rent